John Knight Newcomb (b. 10 Oct 1809, BMN #922) married Julia Ann Enock (b. 17 Apr 1814). B.M. Newcomb said that John and Julia were married in Apr 1833 and that their son William was born in Jan 1833. This is extremely unlikely. In the 1830′s in a respectable, middle-class family, a couple would manage to get married before the birth of the child.
Mary Newcomb (b. 20 Mar 1826) was the daughter of William Newcomb (ca 1777, JBN #511) and Mary Parvis (ca 1785). Hir first husband was Hiram Simons. Her second husband was Alkire (ca 1806). Mary was Adam’s second or third wife. J.B. Newcomb indicated that Mary’s first husband, Hiram Simons, died in 1849, that Adam and Mary were married in September 1851, and that Ellen was Adam’s daughter, born in October 1852. However, the 1860 census gives Ellen’s (age eight, which is in agreement with the birthdate per JBN) last name as Simons, which suggests a different timetable for Hiram’s death and the marriage of Adam and Mary.