Kozar, John.

(Kazar; “Topsy”); b. December 28, 1913; CoB; Single; Seaman; CP October 1936; received passport# 388923 on February 23, 1937 which listed his address as 291 Oakland Street, Brooklyn, New York, and 2451 38th Street, Astoria, New York; Sailed May 1, 1937 aboard the Britannic; Arrived in Spain on May 30, 1937 after surviving the sinking of the City of Barcelona; Served with the Republican Medical Services, Hospital driver; Returned to the US on December 20, 1938 aboard the Ausonia; WWII Merchant Marine; Killed at sea when his ship was torpedoed bya submarine; Kozar died of hypothermia before he could be rescued, 1942. Photograph: John Kozar in Spain, RA Fond 545, Opis 6, Delo 925.

Source

Sail, SACB, RA, (obituary note) The Volunteer, Volume 4, No. 2, April 1942.