The Captain of the SS Richard Montgomery.
According to Wikipedia, various websites and the Southend Dept of Trade & Industry lengthy document included in this post by Kyn, the Captain was a Charles Wilkie.
According to a book by Greg Williams, Liberty Ships of WW II, the Captain was actually Frederick Willecke, born in Bremen Germany on 19 Jan 1890, later becoming a US citizen. After the Montgomery incident he remained here and traveled back to USA from Southampton on the John Ericsson departing Nov 30 and arriving home in New York on 12 Dec 1944.
Meanwhile, whilst still here in UK he probably had a few drinks in the Southend Masonic Hall where he was made an Honorary Member on 31 Oct 1944.
I don’t know, but would imagine that he preferred to be known as Captain Wilkie as a shortened version rather than Captain Willecke... which when pronounced correctly would have sounded ‘Villecke’, maybe just a bit too German sounding in the circumstances.