Lorenzo Dow Hart was born February 2, 1817, in Jefferson County, New York. Lorenzo married Louisa Reinhart in 1850.
The 1850 United States census showed Lorenzo Hart (age 33) married to Louisa (age 27) and living in Athens Boro, Bradford County, Pennsylvania. Philip Hart (age 70) also lived with the couple.
The 1860 United States census showed Lorenzo Hart (age 42, born in New York, farmer) married to Louisa (age 33, born in New York) and living in Roscoe Township, Goodhue County, Minnesota. Children Stella (age 9, born in Pennsylvania), Francis (age 7, born in Pennsylvania), Judson (age 5, born in Pennsylvania), and John (age 2, born in Minnesota) also lived with the couple.
The 1865 Minnesota census showed Lorenzo Hart married to Louisa and living in Pine Island, Minnesota. S. R., F. L., Henry J., John P., and Litta R. also lived with the couple.
The 1870 United States census showed Lorenzo D. (age 52, born in New York, brick maker) married to Louisa (age 46, born in New York) and living in Pine Island, Minnesota. Children Frances (age 17, born in Pennsylvania), Judson (age 15, born in Pennsylvania), John (age 12, born in Minnesota), Lydia (age 8, born in Minnesota), and Reuben (age 4, born in Minnesota) also lived with the couple.
The 1875 Minnesota census showed L. D. (age 58, born in New York) married to Louisa (age 52, born in New York) and living in Minneola Township, Goodhue County, Minnesota. Children Frances L. (age 21, born in Pennsylvania), Judd (age 20, born in Pennsylvania), John (age 16, born in Minnesota), Lydia (age 13, born in Minnesota), and Reuben (age 9, born in Minnesota) also lived with the couple.
The 1880 United States census showed Lorenzo D. (age 64, born in New York, brickyard worker) married to Louisa (age 57, born in New York) and living in Pine Island, Minnesota. Lorenzo lived with his son 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 son John P. (age 21, born in Minnesota, brick manufacturer), and his son Reuben L. (age 14, born in Minnesota, brickyard worker).
The 1885 Minnesota census showed L. D. (age 68, born in New York) married to Louisa (age 61, born in New York) and living in Pine Island, Minnesota. L. D. lived with his son John P. (age 26, born in Minnesota), John’s wife Sophia (age 25, born in Minnesota), his son 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 Lorenzo Hart (age 83, born in February 1817 in Pennsylvania, widowed) living with his daughter Stella Hardy (age 49, born in September 1850 in Pennsylvania) in Pine Island, Minnesota.
Lorenzo Hart died March 29, 1901, in Pine Island, Minnesota.