Dr. Isabella Singer (Rendall) Ralph was born on the 30th of June, 1903 in Fergus, Ontario, the eldest of 4 children. Her parents, David Ernest Rendall and the former Lillie W. Singer were farmers in Nichol Township. Her brother John Ernest Rendall was born on the 7th of March, 1905 and died at the age of 9 from diabetic complications. Her sister Margaret Gray (Rendall) Stickney was born on the 11th of July 1907 and she also became a physician. Her sister Amelia Whelmina Rendall was born on the 9th of September, 1909.
According to the 1921 census, Dr. Ralph was still living with her parents in Nichol Twp and had her occupation listed as a teacher. In 1929, Dr. Ralph graduated from The University of Toronto with a B.A. In 1932 she graduated M.D. from The University of Toronto Faculty of Medicine.
Dr. Ralph married Harry Francis Ralph on the 15th of October, 1932 in Fergus, Ontario. Mr. Ralph was born on the 13th of October, 1894 in Florence, Ontario. His parents, James Ralph and the former Mary Maud Moore were farmers. He had an older sister named Josephine and a younger sister named Louise.
Shortly after their marriage, Dr. and Mr. Ralph moved to a large home on Peter Street in Bothwell, Ontario. Dr. Ralph had her medical office on the main floor, and a dispensary was located in a bedroom upstairs. It was Dr. Ralph’s goal to open a nursery for emotionally and handicapped children. It is unclear if she realized this goal but the large home became known as Rosedale College. Between 1935 and 1946 Dr. Ralph operated Rosedale College to prepare students to become teachers. During summer vacations, Dr. Ralph held classes for teachers to upgrade their teaching credentials.
Dr. and Mr. Ralph left Bothwell and moved to Idaho in July of 1946. Dr. Ralph’s mother Lilly, continued to live at the home in Bothwell. On her Petition For Naturalization, Dr. Ralph listed her occupation as Psychiatrist. Her husband Harry, does not have an occupation listed. It is believed that Dr. Ralph furthered her education while living in the United States. Dr. Ralph returned to Canada periodically and in 1966 she became the first female Superintendent at the South Western Regional Center in Cedar Springs.
Mr. Ralph died on the 28th of November of 1967 at their residence in Cedar Springs. Dr. Ralph died in August of 1986. They are buried at the St. Matthews Anglican Cemetery in Florence (Lambton County).