The 1860 United States census showed John Hart (age 2, born in Minnesota) living with his parents Lorenzo (age 42, born in New York, farmer) and Louisa (age 33, born in New York) in Roscoe Township, Goodhue County, Minnesota. His other siblings were Stella (age 9, born in Pennsylvania), Francis (age 7, born in Pennsylvania), and Judson (age 5, born in Pennsylvania).
The 1870 United States census showed John Hart (age 12, born in Minnesota) living with his parents Lorenzo D. (age 52, born in New York, brick maker) and Louisa (age 46, born in New York) in Pine Island, Minnesota. His other siblings were Frances (age 17, born in Pennsylvania), Judson (age 15, born in Pennsylvania), Lydia (age 8, born in Minnesota), and Reuben (age 4, born in Minnesota).
The 1875 Minnesota census showed John Hart (age 16, born in Minnesota) living with his parents L. D. (age 58, born in New York) and Louisa (age 52, born in New York) in Minneola Township, Goodhue County, Minnesota. His other siblings were Frances L. (age 21, born in Pennsylvania), Judd (age 20, born in Pennsylvania), Lydia (age 13, born in Minnesota), and Reuben (age 9, born in Minnesota).
The 1880 United States census showed John P. Hart (age 21, born in Minnesota, brick manufacturer) living in Pine Island, Minnesota. John lived with his brother Judson (age 25, born in Pennsylvania, brick manufacturer), Judson’s wife Melinda A. (age 20, born in New York), Judson’s step-daughter Pearl L. (age 8 months, born in Minnesota), his father Lorenzo D. (age 64, born in New York, brickyard worker), his mother Louisa (age 57, born in New York), and his brother Reuben L. (age 14, born in Minnesota, brickyard worker).
The 1885 Minnesota census showed John P. Hart (age 26, born in Minnesota) married to Sophia (age 25, born in Minnesota) and living in Pine Island, Minnesota. John lived with his parents L. D. (age 68, born in New York) and Louisa (age 61, born in New York) and his brother Reuben (age 19, born in Minnesota), H. J. (age 30, born in Pennsylvania), H. J.’s wife M. A. (age 25, born in New York), H. J.’s daughter Pearl (age 5, born in Minnesota), and H. J.’s son Frederic (age 1, born in Minnesota).
The 1900 United States census showed John P. Hart (age 42, born in July 1857 in Minnesota, brick maker) married to Sophia (age 40, born in January 1860 in Minnesota) and living in Mabel, Minnesota. Children Bert (age 14, born in February 1886 in Minnesota, brickyard laborer) and Agnes (age 11, born in October 1888 in Minnesota) also lived with the couple.
The 1905 Minnesota census showed John P. Hart (age 46, born in Minnesota, brick manufacturer) married to Sophia (age 45, born in Minnesota) and living in Pine Island, Minnesota. Children Bert O. (age 19, born in Minnesota, laborer) and Agnes M. (age 16, born in Minnesota) also lived with the couple.
The 1910 United States census showed John Heart (age 51, born in Minnesota, brick maker) married to Sophia (age 50, born in Minnesota) and living in Wrenshall, Minnesota. Children Bert O. (age 24, born in Minnesota, brick maker), Bert’s wife Alice (age 24, born in Minnesota), and Agnes (age 21, born in Minnesota) also lived with the couple.
The 1920 United States census showed John P. Hart (age 61, born in Minnesota, laborer) married to Sophia (age 60, born in Minnesota) and living in Pine Island, Minnesota. A daughter, Agnes S. (age 31, born in Minnesota), also lived with the couple.
The 1930 United States census showed John P. Hart (age 71, born in Minnesota, farmer) married to Sophia (age 70, born in Minnesota) and living in Pine Island, Minnesota.
John Philip Hart died January 28, 1938, in Goodhue County, Minnesota.