As excited as I felt on seeing (and translating) this post, it is probably not my great-uncle. The occupation is very different, I know for certain that he was born in 1878 or 1879 (from two different sources), and this man was naturalized in 1927, by which time my relative had returned to the USSR. And I'm pretty sure he never became a French citizen.
I think the best bet would be to find a record of his marriage, which could have been in France. Also, he may have had a daughter named Lidia born in 1912.
Ellen Morosoff Pemrick
Saratoga County, NY
Researching WEISSMAN/VAYSMAN (Ostropol, Ukraine); MOROZ and ESTRIN/ESTERKIN (Shklov & Bykhov, Belarus); LESSER/LESZEROVITZ, MAIMAN, and BARNETT/BEINHART/BERNHART (Lithuania/Latvia); and ROSENSWEIG/ROSENZWEIG, KIRSCHEN, and SCHWARTZ (Botosani, Romania)