Armstead Heath was the son of Joseph Heath and his first wife Margaret Bates who migrated from the Harper's Ferry area of VA into early Madison Co. OH. A biosketch says they had seven children. Armstead was one of the seven. This is proved by his father's will which names him as his son (posted on fathers memorial.) Armstead chose to live in Champaign Co OH, which was the same county his uncle Zachariah Heath lived in.

Armstead married on Jan 31 1840 in Champaign Co, OH, Sarah Jane Miller, the daughter of Christian Miller and Elizabeth Heath (a daughter of his uncle Zachariah Heath). Their known children were:

Levi Miller Heath b. May 31 1842 m. 13 Apr 1865 Martha Ann Williams
Mary Elizabeth Jane Heath b. July 1843 m. 30 Mar 1865 Isaac Marion Williams
John R. Heath b. Apr 1845 m. Lucy
Mahala Catharine Heath b. 1847 m. Elijah Fansler

The 1850 census for Champaign Co OH has this:
A.M. Heath, 35
Sarah Heath, 33
Levi M Heath 8
Elizabeth Heath 6 b.ca. 1843 OH
John R Heath 5
Mahala C Heath 3
(living next door Robert Russell age 66 b VA stepson of Ann Nancy Heath Russell and husband James Joseph Russell from Loudoun Co VA.)

Armstead Mason Heath moved his family to Pleasant Twp, Grant Co. IN by the July 23 1860 census:
Armstead 45 farmer
Sarah J 44 wife
Levi M 18
Elizabeth J 16
John R 15
Mahala 13

He remains in Grant Co IN for the 1870 census but neither Elizabeth J Heath or Mahala C Heath are in the household (Mahala married in 1866). Levi Heath and John R Heath remain and Levi Heath has wife and child living with his parents.

He remains in Grant Co IN for the 1880 census still farming at age 65 with wife age 63. No children in household any longer. Farming on one side is his son Levi and family and other side his son John R. Heath. One more door down is his married daughter Mary Elizabeth Jane (Heath) Williams and her husband Isaac. This daughter disappears by the May 9 1910 census for Grant Co IN and her husband Isaac Marion Williams has married a 2nd time.