Search for relatives of GGF Boris and GF Wsiewolod
I am looking for any relatives tracing to Warsaw around 1850's of Boris Olszewski, my G/G/F who had a son, my G/F Wsiewolod Olszewski born around 1894-7.Wsiewolod lost contact with entire family after WWII.Mentioned he had siblings. Wsiewolod settled in Nuevo Laredo, Mex and died
in 1972.He attended music classes at Warsaw Conservatory for Music and played Chopin suites with perfection.Any feedback or data would be appreciated.