Henry Leader was born 20 May 1868 in Brooke Township, Ontario. His parents were James Leader and Hannah. He married Emma Alferetta Healey (1876-1948), daughter of James Samuel Healey and Sara Jane Apley, in 1892 in Petrolia, Ontario. They had nine children. Henry died 21 November 1937 in Glenboro, Manitoba. Descendants and relatives lived mainly in Manitoba, British Columbia, Michigan and Washington.