Sosnkowski, over his career, used a number of noms de guerre, including "Baca" (Polish mountaineer term for "shepherd"), "Godziemba" (the name of his hereditary coat-of-arms), "Józek" (Polish slang for "Joseph"), "Ryszard" ("Richard"), "Szef" ("Chief").

Sosnkowski was married to Jadwiga Sosnkowska.
They had five sons: Alexander, Peter, Anthony, John and Joseph.
The last three lived in Canada whereas Alexander lived in the U.S. and Peter split his time between the U.S. and France.

John died in Cornwall, Ontario, Canada, on 25 April 2009; Anthony in Charlottetown, P.E.I. Canada, 26 June 2012; Joseph, in Victoria, B.C., 6 November 2011; Alexander in Quincy, Illinois, U.S.A., 30 March 2015.
Sosnkowski, over his career, used a number of noms de guerre, including "Baca" (Polish mountaineer term for "shepherd"), "Godziemba" (the name of his hereditary coat-of-arms), "Józek" (Polish slang for "Joseph"), "Ryszard" ("Richard"), "Szef" ("Chief").
Sosnkowski was married to Jadwiga Sosnkowska. They had five sons: Alexander, Peter, Anthony, John and Joseph. The last three lived in Canada whereas Alexander lived in the U.S. and Peter split his time between the U.S. and France.
John died in Cornwall, Ontario, Canada, on 25 April 2009; Anthony in Charlottetown, P.E.I. Canada, 26 June 2012; Joseph, in Victoria, B.C., 6 November 2011; Alexander in Quincy, Illinois, U.S.A., 30 March 2015.
Kazimierz Sosnkowski