The earliest newspaper mention for Morland Braithwaite was the making of a film called
Youth Hails Adventure for the Youth Hostels Association in 1934 with another local, Norman Blinkhorn as Technical Advisor. A copy of this film is held in the National Archives along with other YHA materials. Whereas the latest newspaper mention I could find was this advertisement in November 1973:-
View attachment 153884
However, it was a Limited Company and was not wound up until 1989:-
View attachment 153885
Normally I would suggest that you attempt to contact Hodgson Impey & Partners at the address shown, but see my next two paragraphs. Please bear in mind that this was over 30 years ago and solicitors don't tend to hang onto files once a case has been closed for ten years. They may have destroyed the files, or may have donated interesting ones to a local archive in Leeds or Birmingham. Also the Liquidators job is to realise the value of as many remaining assets as possible to pay off any debts of the Company, the remainder to be distributed among the directors once the Liquidator's costs have been paid.
Also the Company may not have held onto negatives once they have reached a certain age, and they would then most likely have been simply destroyed. Next you might like to take a look at this:-
https://www.icaew.com/library/historical-resources/guide-to-historical-resources/firm-histories/whats-in-a-name/
hodgson-impey
Now this is where I think your hopes may be evaporating into thin air because BakerTilly is a huge American conglomerate with their fingers in many pies and with offices all over the world, including one here in Greece, and in the UK only in Manchester and London. The chances of anyone in their Manchester office even wanting to know anything about a tiny company that has been defunct for so long is infinitely small. Even Companies House destroy records of companies once they been defunct for 20 years.
So my best advice to you is to contact both Leeds Archives -
leeds@wyjs.org.uk - and Birmingham Archives -
archives.heritage@birmingham.gov.uk to see if they have anything on the Company, but I think it unlikely that archives of personal pictures of little interest to the public at large will have survived. Charles Morland Braithwaite died at Bromsgrove in 1982 so it is difficult to be certain whether the Company traded after his death or who the other Directors may have been for the reasons given in the previous paragraph. Also bear in mind that Covid may mean that you late a long time to get a reply from emails to archives
Sorry this has been a lengthy reply, but I hope you realise how difficult it is to find any surviving archive material.
Maurice