Dr. William Wallis Hay was born in Pine Grove, York County, Ontario on the 23rd of March, 1864. His parents were the Rev. Robert Hay and the former Annie Juliet Wallis. Rev. and Mrs. Hay had 12 children and Dr. William Hay was their third child. Dr. Hay attended school in Toronto and graduated from Toronto Collegiate Institute. He secured his medical training at Trinity Medical College, in conjunction with The University of Toronto Faculty of Medicine graduating M.D. in 1886. Dr. Hay practiced in Dundalk, Ontario before moving to Wallaceburg in 1889.
Dr. Hay married Gretta Belle Steinhoff on the 5th of October, 1892. They were married in Wallaceburg by Dr. Hay’s father, Rev. Robert Hay. Gretta was born on the 10th of April, 1871 in Wallaceburg, the daughter of Captain Andrew Steinhoff and the former Elizabeth MacDonnell. She had an older brother Alexander who was born in 1867 and died the following year and she had a younger brother James Andrew (1873-1901).
Dr. and Mrs. Hay, had one daughter Gretta Julliett Steinhoff Hay who was born in Wallaceburg on the 29th of April, 1895.
Dr. Hay was a member of the Knights of Pythias and the C.O.F. Dr. Hay was a member of the Presbyterian Church and served on the Board of Management in Wallaceburg. Dr. Hay served as a Councillor for the Town of Wallaceburg in 1913 through to 1918.
Dr. Hay died on the 16th of December 1927 and he was buried at Riverview Cemetery in Wallaceburg, in the Steinhoff Family Plot. Mrs. Hay died at her residence on Duncan Street on the February 4th, 1930 and she was also buried at Riverview Cemetery.