Question: What is the date of birth of Stafford Smythe's father?
Sentence (from "Stafford Smythe"): Conn Stafford Smythe (March 15, 1921 – October 13, 1971) was the son of Conn Smythe and president of Maple Leaf Gardens Ltd. and the Toronto Maple Leafs hockey team from 1961–1969 and from 1970 until his death.
Relevant evidence: Yes