Threads, updated …or a series of dubious conclusions about what really happened in the Somerton Man case
The working theory here is that Prosper Thomson and SM knew each other when they were both living and working in Melbourne and they kept in contact after PT moved to Adelaide with Jessica. Going on from there we can assume PT became aware of SM’s intentions to leave his wife and travel to Adelaide.
And the remote possibility exists that SM might have been holding a large amount of cash, possibly stolen from the Lonsdale street baccarat school where he was identified as being an employee, remembering that such establishments tended to bypass any police assistance in such matters and deal with it themselves, even if it meant paying off various authorities along the way. This might be the reason for some individuals in authority for failing to satisfy basic procedures, as in not fingerprinting any items in the suitcase, not photographing the Rubaiyat then losing it, not interviewing PT, not deposing several crucial witnesses after the inquest was adjourned, Jessica in particular, who in the opinion of both both those observing her viewing the bust and cold case investigator Gerry Feltus after interviewing her, felt sure she knew the man found dead not 200 yards from her home.
Melbourne, early 1949 – Two prominent Melbourne baccarat players who desire to remain anonymous, believe they knew the unknown man in the “Somerton beach body mystery.” They saw the man’s picture in a Melbourne newspaper and said they thought they recognised him as a “nitkeeper” who worked at a Lonsdale street baccarat school about four years ago. They could not recall his name.
They said the man talked to few people. He was employed at the baccarat school for about 10 weeks, then left without saying why or where he was going. ###
Lifted from Nick Pelling’s Cipher Mysteries
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THOMSON PROSPER MCTAGGART : Service Number – VX67088 : Date of birth – 26 Oct 1912 : Place of birth – CHARTERS TOWERS QLD : Place of enlistment – CAULFIELD VIC : Next of Kin – THOMSON QUEENIE
PT was signed up on Dec 29, 1940 and immediately took Leave Without Pay until Jan 6, 1941.
Transferred to Puckapunyal Training Camp in Victoria 12 Jan 1941.
Vic – Found to be suffering from Haemoptysis on 23 Jan 1941.
Vic – Submitted for a Chest Investigation on 2 Feb 1941.
Vic – Admitted for Haemoptysis 19 Feb 1941.
Vic – Discharged fit 24 Feb 1941.
Vic – Granted leave without pay to go fruit picking 26 Feb 1941.
Transferred to Sydney from Puckapunyal, B Section Corps Workshops 4 May 1941.
Syd – Temporarily discharged from duties due to Pneumonia 10 July 1941.
Syd – Diagnosed with a mild case of Asthma 11 Aug1941.
Syd – Returned to duties 18 Aug 1941.
Vic – Admitted for Asthma and Sinusitis 29 Aug 1941.
Vic – admitted for Bronchitis and Sinusitis 28 Jun 1943.
Vic – Diagnosed with Post Concussion Syndrome 13 Sep 1943.
Vic – Discharged from service 26 Sep.
Thomson spent two years and nine months in uniform.
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The gun ads (below) placed by PT may have been on behalf of somebody else particularly given his stay-at-home war service record (above) and consequent lack of firearms experience. Or perhaps the someone was SM, suspecting a visit from his former Melbourne employers.
Mar 47 – Wanted .22 rifle (This ad place three times this month). Hindley St.
Mar 47 – WANTED .22 auto or repeater – cash or exchange Healing Cycle. Thomson.
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The following ad could have been the price PT was asking for someone (SM?) to buy a share of his business.
Mar 47 – WANTED. Partner for used car business – £500 to £1000. City premises. Box 1009j ($1,000 in 1947 is equivalent in purchasing power to about $40,912 today) ##
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April 47 – CARL WEBB DESERTS WIFE.
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May 47 – WANTED. Employment of any kind. Good refs Thomson. Box 953H.
The above ad suggests Thomson was looking for work for an acquaintance (SM?) and was willing to give him good references.
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May 47 – WANTED. URGENTLY. Car any type, spot cash. Thomson. Box 953H
May 47 – WANTED DESPERATELY. Car, any type, pay cash. Box 953H. £75 to £200 (£200 is $8,182 aud today).
May 47 – WANTED. Any make car, cash or takeover terms. Thomson. £150 ($6,137 aud today). Box 953H
These ads might lead you to believe PT was in a hurry to buy a car for someone else. (SM?)
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May 47 – WANTED. Building suit workshop – pay ingoing or buy plant. URGENT. Thomson. Box 953H.
This ad doesn’t appear to be for premises a car dealer might use as most dealerships have onsite facilities for legal mechanical work. Illegal work on stolen cars on the other hand, like erasing the correct engine and chassis numbers by substituting fake numbers and swapping registration plates, winding back odometers or respraying stolen cars would be best done out of sight.
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27 Nov 1948 – Wanted bungalow, pay cash to £1,500 (equivalent is $61,367 aud today.) Can give tenancy maisonette, all mod cons, rent 22/6, Glenelg. Phone Thomson X3239.
## If SM had declined to part with the price of joining Thomson in business, he may have considered this offer to buy his house. Either way, it seems that PT was more than anxious to get his hands on a large amount of cash.
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1 December 1948 – Man thought to be Carl Webb found dead in mysterious circumstances on a beach a couple of hundred yards from the home PT shared with Jessica and her young son.
*** Which leads to the outlandish proposition that SM did steal the baccarat school’s money, did a fast bunk only to have a couple of Melbourne heavies follow him to Adelaide and that’s all she wrote.





1942 seems to have been a healthy year for Prosper? If Prosper had his own car business by May 1947, why would he need to advertise for a car, why such a sudden, desperate need? Was he wanting a car from another state, a car new to the SA police, perhaps?
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Maybe somebody else was in a hurry and PT was doing him a favour.
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Would “heavies from Melbourne”, wanting to recover stolen cash from SM (and having the inconvenience of having to travel all the way to Adelaide in order to get it )…leave SM without barely a mark on him?
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Guzz .. good point. Anyone?
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I love Dude’s theory…BUT…would this massive, continuing, cover-up…that can only be coming down from Government level….really just be over a card school?
A couple of blokes in Melbourne, stealing a few grand back from another couple of blokes in Adelaide who stole it from them in the first place?
I’m still going with the ” cold war”, “spies”, “honeytrap”, “Woomera atomic secrets” theory for all this Tom-fuckery we’ve been put through.
Anything less would be a complete let-down.
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See Trove 7 May 1947 Page 17: ( http://www.trove.nla.gov.au/newspaper/article/74636466?searchTerm=Thomson)
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Is this Prospero? From June 1947, same Box no:
“EXCHANGE. Adelaide, new Brick, 3 bed
rooms. lounge, dinette, sunroom, all
electric. 75 ft. frontage, elevated position,
close tram and trolley bus, 4 1/2 miles from
G.P.O., Burnslde district. N.S.P.R.; £1450,
for House. Melbourne, suburbs, 2 bedrooms
would do. Vacant possess. both ways: Write
Freehold. Box 953H, G. P.O. . Adelaide, for
particulars.”
https://trove.nla.gov.au/newspaper/article/206026985?searchTerm=%22Box%20953H%22
These certainly are (from Pilchard’s post about Prosper Thomson’s 1947 in Trove):
[8 May] VACANT possession, all electric, jarrah 4 rooms, large louvred glass sleepout, modern kitchen and bathroom, large block, nicely laid out garden, definitely best position in Belair, 7 miles from G.P.O., 2 minutes Belair rly. Stn., built 1939. Require sedan car, 1938-46 model, suitable taxi, balance cash. Write Box 953H, G.P.O. for appoint.
[17 May] VACANT pos., all-electric 5-roomed jarrah bungalow, condition as new, 2 minutes Belair rly. stn., 7 miles from city; car taken as part payment if desired. Write Box 953H. for appoint.
https://ciphermysteries.com/2023/12/29/prosper-thomsons-1947-in-trove
The Thomsons’ address for some of these ads was “Robinvale”, Altamira Crescent, Belair. Missing in action commenter Poppins wondered if “Robinvale” had anything to do with son Robin, who was born in July 1947.
Pilchard surmised:
https://ciphermysteries.com/2023/12/30/a-victoria-licensed-electrical-engineer-in-prosper-thomsons-henley-beach-house
Richard D commented on 31 December 2023:
“Looking at land records I can see that the Alta Mira property in Belair was purchased by a Reginald John Fullgrabe (died 1959 in Hobart) in 1937. He then sold it to Prospert McTaggert Thomson on 24/2/1947 who in turn transferred it to his wife Jessie Ellen Thomson on 11/4/1947 who in turn sold it to Allen David Stanley (died 1990 in Adelaide) on 25/6/1947. Maybe someone can explain why the house was bought by Prosper and then transferred to his wife and then sold within a few months?”
Did Prospero want a house in Melbourne for Carl Webb or for himself? Was he trying to make some quick spondulix buying and selling houses?
Oh God, is Sanders really back? Get ready for more misgendering and jibes about Syph etc! Or is it just Cheryl from the CWA havin’ a laugh?
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Nup. None of it aligns with the fact that the cops left Jess alone, didn’t take photos of the body when it was on the beach, and didn’t take fingerprints on items, the cops didn’t involve PT, and there is nothing that links PT to SM
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Yes there is. The phone number.
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The Belair house looks like a wash sale to me. Look at the timings.
Prosper being the wheeler dealer he was buys the house in February for a good price , then puts it in the the defactos name 6 weeks later.
He then on sells it to Allen Stanley and settles exactly 5 days before the end of the financial year avoids capital gains tax in the 46/47 financial year.
The money from the sale is transferred to Jess not Prosper so the profit is hidden. Now days the ATO have systems in place to pick this type of thing up but back in 47 it wasn’t so hard to pull off.
I doubt he even moved in and probably had a buyer ready to go when he bought it off Fullgrabe.
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Nup. Can’t see the name Prosper unless I’ve missed it. Phone Thomson X3239. Jess Thomson
A body found on the beach in the morning. The cops had to initially treat it as a homicide overnight. Cordon it off, take photos as a reference to the position of the body, the clothes the man was wearing, photos of his body and face at the scene to see if there had been an assault. Photos to study it back at the police station.
But the cops didn’t need to
They already knew
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Have another read of PT’s ads sport …
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Don’t see any mention of a Prosper Thomson perse’ nor gender or misgender (Syph?) in any Ads to date, only assumptions. Be reminded that the Thomson family included three bros. and a sister all who served in the AIF plus Rollo (dec.) in the RAAF. Then there was Prosper who did a part time stint in the CMF, not AIF as claimed in some Thomson ads. with Sister J.E. Thomson tel No. X3239 and Moseley St. address.
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So, 7 Main St, Henley Beach, was this the house that Prosper or Jessie was living in before moving to Belair?
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Doesn’t look like it. Sands & Mc says a Miss R Ward lived at 7 Main St Henley Beach. A short stagger from the Ramsgate
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Per Trove, 1 March 1947, Prosper was advertising for a larger car, address Clinical Distributors, 200 Hindley St. Interesting that it quotes: ‘We’, I wonder who the other person was?
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Like nails in the now disputed coffin of mistruth .. and all down to the Dude, the bloke’s an undisputed genius: Cramer should take note, and Pelling, and Abbott, and Morgan .. and Sanders of course, not to mention SteveH, who, despite his impeccable antecedents make less than little sense.
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His business partner and confidante Jess
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If it is the same Thomson though at Clinical Distributors
One also worked at Savery’s Pianos in Rundle Street and had a car for sale, so who knows
Particularly that being a later time when Prosper and Jess were already well into the used car business, he’s not going to be a piano salesman at Savery’s
There are over 80 Thomsons in Adelaide in that era in Sands & Mc, and some more who wouldn’t be listed
Thomson at Clinical Disributors or Savery’s could be any Thomson
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IF ! it was murder Prosper had to be the connection. I dont believe for one minute the mousey little nurse would be capable.
Think about her reaction to seeing the bust. She lost her shit Her reaction to the bust was pure shock. She knew who he was and the realisation that her man Propser was the culprit hit her right in the face. Apparently she nearly passed out.
Think about all the wasted time and resources tracking down dead ends like Alf Boxall. Meanwhile Prosper goes on wheeling , dealing and stealing.
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Not only the shock of recognising the SM and, realising who was responsible for his demise, Jessie also realised she was stuck between a rock and a hard place. She couldn’t go to the police without evidence and, with a small child, she had no option but, to stay with Prosper. And, didn’t Prosper know that.
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Exactly Clive !!
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Only one confirmed witness to mousey’s shock at recognition and fainting fit in seeing the unfurled SM bust on July 27 1949. So happens it’s creator Paul Lawson didn’t recall showing it to anyone under forty in his ‘Inside Story’ TV debut on TV in 1978. at age 60; yet he recalled with full clarity said events at Adelaide Museum from back in July ’49. He was nearing the ton then and in his element on ‘utube’.
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Lawson was a fucking legend. I saw him at the doco opening in Adelaide a few years back when he was knocking on the ton and he looked well and sharp as a tack. I posted some photos from that night here. No-one seemed to pick up the fact that he wore the exact outfit our man SM was wearing on the day. I like to think it was a little inside joke on his part.
It was quite the evening, everyone from Feltus to Lawson , one of the strappers and of coarse the professor and his bride was there.
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Even Gordon Strapps
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