Mary E. Horn (nee Gordon) originally came from Peterborough, Ontario. In 1912 she purchased a plot of land in Moose Jaw, Saskatchewan, numbered lot 6 block 49. She eventually settled in Regina, Saskatchewan in either 1915 or 1916, and married John Horn in either 1920 or 1921.

John Walker was born on February 11, 1917. He was educated in Moose Jaw and worked for the Canadian Pacific Railway (CPR) starting in 1939. From 1940 to 1945 he served with the Royal Winnipeg Rifles. Upon his return John Walker continued working for the CPR and married Muriel Fysh in 1947. He was a member of the United Transportation Union Local 502 and the Moose Jaw Natural History Society. John Walker died on July 6, 1972