An Elizabeth Roberts married John Rankin in Floyd Co, In on Oct 1, 1854.
Indiana Marriage Collection, 1800-1940 Name: John Rankin Spouse Name: Eliz Roberts Marriage Date: 1 Oct 1854 Marriage County: Floyd Source Title 1: Floyd County, Indiana Source Title 2: Index to Marriage Record 1845-1920 Inclusive Volum Source Title 3: W. P. A. Book Number Indicates Location of Record Book: 4 OS Page: 103
I found a John Rankin with wife Elizabeth, with a sister Rachel, b Ireland, in Washington County, Iowa in 1870. He was born in Ireland. Elizabeth b Pa. No proof this is the right family but they were not in Indiana in 1860 or 1870.
I found nothing on Rebecca. Do you have anymore information on the family?
There were two Roberts families in Floyd Co in 1840. One a Hardin Roberts had no children the right age. This one had two daughters who might be them.
1840 United States Federal Census Name: Henry Roberts Township: Greenville County: Floyd State: Indiana Free White Persons - Males - Under 5: 1 Free White Persons - Males - 5 thru 9: 2 Free White Persons - Males - 15 thru 19: 1 Free White Persons - Males - 30 thru 39: 1 Free White Persons - Females - Under 5: 1 Free White Persons - Females - 5 thru 9: 1 Free White Persons - Females - 10 thru 14: 2 Free White Persons - Females - 30 thru 39: 1 Total - All Persons (Free White, Free Colored, Slaves): 10 Persons Employed in Agriculture: 2 No. White Persons over 20 Who Cannot Read and Write: 2 Free White Persons - Under 20: 8 Free White Persons - 20 thru 49: 2 Total Free White Persons: 10 Total All Persons - Free White, Free Colored, Slaves: 10