Bear in mind that the majority of U.S. soldiers in the UK then were white.

By the end of 1944 there were 768 soldiers imprisoned there, guarded by 12 officers and 82 enlisted men.

And during this time, 18 servicemen were executed at the prison - sixteen were hanged and two were shot by a firing squad. The Americans constructed their own execution wing, two storeys high that contained the gallows.

Hangman Thomas William Pierrepoint conducted most of these executions, assisted by his nephew, Albert Pierrepoint.

Of those executed, nine were convicted of murder, six of rape, 10 of those men were black, and three were Hispanic.

https://www.somersetlive.co.uk/news/somerset-news/dark-somerset-wartime-gis-executed-1701295