Taken from his biography, which appears on pages 1382-1384 in "History of South Dakota" by Doane Robinson, Vol. II (1904)
JOHN EDMUND McDOUGALL, born in Campbellton PEI , on the 24th of February, 1860, son of John and Grace (Mercerau) McDougall, the former of whom was born on Prince Edward Island, while the latter was a native of New Brunswick. The paternal grandparents were born in Scotland, they emigrated to America about the year 1820, settling in Malpeque, Prince Edward Island. Grace died when John was thirteen, and his father married Miss Jennie (Jane) McLean, five sons and four daughters having been born of the first union and one son to the latter union. The father died in the month of May, 1902.
In November, 1883, he went to Norton, Massachusetts, where he married Miss Isabel R. Munro, and returned to Minneapolis. In August, 1884, a son was born to them, Edward James. On the 26th of December, 1884, Mrs. McDougall died.
On the 25th of May, 1886, Mr. McDougall left Minneapolis and came to Britton, Marshall county, South Dakota. In November, 1900, Mr. McDougall was elected to represent his county in the lower house of the state legislature, having been the first Republican elected to this office in the county in four years. In the election of November, 1902, he was elected senator from the thirty-second district.
On the 13th of June, 1893, Mr. McDougall married Miss Nettie A. Marsh, of Britton. She was born in Kalamazoo, Michigan, and is a daughter of George J. and Amanda Melvina Marsh. Mr. and Mrs. McDougall have two children, Tyrrell Glenn, who was born on the 29th of March, 1894, and Portia Lois, who was born on the 24th of November, 1896.
Portia L Mcdougall, Daughter
United States Census, 1920
birth: 1897 South Dakota
residence: 1920 , Marshall, South Dakota
parents:John E Mcdougall, Nettie A Mcdougall