Resignation Trap: Here's what I could find on this player.
Born 1903, died in Leningrad in 1967. In the issue of <Shakhmatny Bulletin> which mentioned his death, it was noted that Gotthilf was a key financial worker who was preoccupied with production matters.
In the 4th USSR Championship he scored 11/19 and placed 6th-7th. Later that year, he was a participant in the Moscow 1925 International Tournament where he scored 6.5/20.
Around this same time, he also won a small tournament in Leningrad ahead of the talented Carlos Torre-Repetto .
In the 6th USSR Championship, held in Odessa in February 1929, Gotthilf was in the fourth quarter-final group, but only scored 3/8 and failed to advance.
Gotthilf won a masters tournament in Leningrad in 1930, and was scheduled to play in the 7th USSR Championship final. His name was removed from the list at the last minute for committing "an anti-Bolshevik act." It seems that he requested a separate apartment during the tournament, rather than in a dormitory like the the other finalists.