Jan Savitt
Jacob Savetnick
Jan Savitt (born September 4, 1907, Shumsk, Russia Empire - died October 4, 1948, Sacramento, California, USA) was a Russian-born American bandleader, musical arranger and violinist. He trained as a classical violinist and joined [a27519] at the age of 19. He is perhaps best known as the bandleader of [a=Jan Savitt And His Top Hatters], which had several Big Band hits in the late 1930's.
https://en.wikipedia.org/wiki/Jan_Savitt