John was born on 12 May 1828. He was the son of
Alexander Douglas and
Jennet Simonton. He married
Martha Sarah Bell at
South Carolina circa 1851. He married
Margaret Scott Deborah Boyce at
Fairfield Co., South Carolina, on 3 January 1855. John was listed as the head of a family on the 1870 Census at
Fairfield Co., South Carolina. 1870 South Carolina, Fairfield Co., lists the following family: John S. Douglas, age 42, born in South Carolina; Margaret B., age 35, born in South Carolina; William B., age 14, born in South Carolina; Antoinette, age 13, born in South Carolina; Charles A., age 11, born in South Carolina; Louisa, age 9, born in South Carolina; Calvin, age 7, born in South Carolina; Eugene, age 5, born in South Carolina; Robert, age 3, born in South Carolina; Jennette, age 71, born in South Carolina; Douglas Bell, age 20, studying medicine, born in South Carolina.. John was listed as the head of a family on the 1880 Census at
Fairfield Co., South Carolina. 1880 South Carolina, Fairfield Co., list the following family: John S. Douglas, age 52, farmer, born in South Carolina, parents born in South Carolina; Margaret, age 46, born in North Carolina, parents born in North Carolina; Nettie, age 22, born in South Carolina; Charles, age 13, born in South Carolina; Eugenia, age 12, born in South Carolina; Scott, age 11, born in South Carolina; Edward, age 9, born in South Carolina; Albert, age 8, born in South Carolina; John W., age 6, born in South Carolina; Joseph, age 1, born in South Carolina; Louisa, age 18, born in South Carolina.. John died on 4 March 1912 at
South Carolina at age 83. His body was interred in March 1912 at
Fairfield Co., South Carolina, at New Hope ARP Cemetery.