According to his attestation papers, dated December 1, 1916, Roy Reginald Vint was born in Penetang, Ontario on September 12, 1894. He listed his mother, Christina Vint as his next of kin. He was an accountant and had no previous military experience. He was 23 years and 4 months of age. He was 5 feet 11 inches tall with brown eyes and hair. He was Presbyterian.
According to the 1914 Toronto City directory he was a bookkeeper at the Ontario Sewer Pipe Co. Ltd. in Mimico and lived with his father's home on the east side of Victor Avenue.
His brother also enlisted.