Robert Elkins was born about 1818 in New Hampshire, according to the 1870 census for Miamisburg, Montgomery County Ohio [NARA M432:713, p. 62B] According to FamilySearch.org "Ohio, County Marriages, 1789-1994," Robert married Anna Eve Mooter, daughter of George Mooter on 22 October 1840 in Montgomery County, Ohio. In 1870 Robert, age 32, millwright, living in Miamisburg, Montgomery County, OH, lived with his wife Eve, age 26, born Ohio, and their children: George, age 7, Erastus, age 5, Mary or May, age 3, and Wm. H., age 4 months, as of June. This census was taken on 15 August.
Other than these two records, I have not been able to learn anything else about him, or his children, with the exception of Wm. H., who lived in Darke Co. Ohio, Boone Co. Iowa, and Brown County, KS.
Does anyone have anything more on this family?