In what year was Clara Clemens first husband born?
Ossip Gabrilowitsch: Ossip Gabrilowitsch (Осип Сoломонович Габрилович, "Osip Solomonovich Gabrilovich"; he used the German transliteration "Gabrilowitsch" in the West) (7 February [O.S. 26 January] 1878 14 September 1936) was a Russian-born American pianist, conductor and composer.
i don't know