Third of five children born to Walter Frederick Gouin and Eliza Flindall.
His father and uncles were all college educated, unusual for the time. Walter was an Inland Revenue Inspector who was transferred from Ontario to Winnipeg, where Frank met his wife, Florence Isabell Hazlewood.
Uncle Georges was Town Superintendent in Trois-Rivières, Québec; Uncle Francis owned a well-known tavern; and Uncle James was the hotel proprietor of Russell House in Ottawa and later appointed Postmaster.
Frank's own father and mother died by his 20th birthday and Frank himself died unexpectedly at age 33 from tuberculosis, leaving two young sons, Frank age four and Gerald Tees six months.
He was an expert accountant and the greater part of his business life was spent in the employ of Tees & Persse (for whom his younger son was named).
His grandson, Frank L. Gouin, could be a twin of his own gg Uncle James in Ottawa.