William Leonard ZWICKER was born on 25 February 1855 in Lapland, Lunenburg County, Nova Scotia. He died in 1907 at the age of 52. Parents: John ZWICKER and Sarah Margaret WEINACHT.

Spouse: Minnie WEAGLE. Minnie WEAGLE and William Leonard ZWICKER were married on 8 September 1894 in Wileville, Lunenburg County, Nova Scotia.

Spouse: Elizabeth Ann WHYNOT. Elizabeth Ann WHYNOT and William Leonard ZWICKER were married on 4 September 1897 in Danesville, Queens County, Nova Scotia. Children were: Aubrey Webster ZWICKER, Laura Florence ZWICKER.