Dr. Duncan Colin Leitch was born in 1843 in Yarmouth Twp, Elgin County. He was the 2nd of 4 children born to Colin Leitch and the former Nancy Ann McLarty. His siblings were: Malcolm Colin Leitch, Archibald John Leitch and Julia Ann Leitch.
Dr. Leitch married Susan Long on the 22nd of September, 1869 in Yarmouth Twp., Elgin Co. At the time of his marriage, Dr. Leitch was a school teacher in Yarmouth Twp. Mrs. Leitch was born on the 4th of December, 1850 in Dumfries Twp (Brant County), Ontario. She was the youngest of 6 children born to Elias Josiah Long and the former Catherine Lucretia Hannon. Her father and her 4 eldest siblings were born in Pennsylvania, USA but her mother was born in Canada. The Long family immigrated to Canada between 1841 and 1845. According to the 1851 census her parents were farmers in Dumfries Twp. Eventually the Long family moved to Yarmouth Twp in Elgin County (Ontario). Her siblings were; Daniel Bonham Long, Mary Long, Josiah Long, Almina Long and Emily Long (Emily died on the 13th of February, 1878). Mrs. Long’s parents and most of her siblings were buried at Union Cemetery in Elgin County.
Dr. and Mrs. Leitch had a son, Arthur Elias Leitch born to them on the 7th of March, 1871 in Yarmouth Twp. According to the 1871 census Dr. Leitch was a school teacher. Dr. and Mrs. Leitch had 2 daughters born to them after Dr. Leitch completed medical school, Annie Catherine Leitch was born on the 24th of April, 1876 and Margaret Blanche Leitch was born on the 26th of August, 1878.
Dr. Leitch graduated M.D. from the Long Island Medical College in New York. He returned to Canada and graduated M.B. from Trinity College in Toronto in 1874. Dr. Leitch joined the Ontario College of Physicians and Surgeons in 1874. At the time of his registration with the College of Physicians and Surgeons, Dr. Leitch listed his residence as Duart. In 1878, he was listed on the Ontario Medical Register with a medical practice located in Port Stanley (Elgin County).
Dr. and Mrs. Leitch’s daughter Annie Catherine Leitch was born in Port Stanley and his daughter Margaret Blanche Leitch was born in St Thomas (Elgin County).
Dr. Leitch died on the 17th of February 1891 and he was buried at the Fairview Dutton Cemetery in Elgin Co. He was 47 years old. According to the 1901 census, Mrs. Leitch was living in Dutton with her daughter Margaret. Mrs. Leitch died on the 1st of April 1902 at the age of 52 and she was buried beside her husband at the Fairview Dutton Cemetery.
*Dr. Leitch’s son Dr. Arthur Leitch practiced medicine in Michigan.