I've found quite a bit on this family - here's the info
In the 1850 census of Gilmer Co., VA, Nancy is listed as age 18 and her sister Jemima as age 11.They were listed with their parents, Thomas & Nancy Boilen.
Hanson Heater and Nancy Boilen were married on 6 Dec. 1850 in Gilmer Co., VA.
Death record for Nancy (Boilon) Heater states she died 3 Aug. 1858 and that she was 26 years, 7 months and 8 days old.
In the 1860 census of Gilmer Co., VA in the household of Hanson Heater there are three children listed: Elias-9, Thomas-5 and Minor-2.
Hanson Heater married then to Jemima Boilen on 14 Oct. 1860 in Gilmer Co., VA.
Then is the 1870 census of Gilmer Co., WV in the household of Hanson & Jemima Heater there are many children: Elias-17, Thomas-14, Minor-12, Ellis-10, Rosetty-9, Perry-7, Marion-5, Jeremiah-3, Elinor-2 and Ampendia-2mos.
Also, Hanson and Jemima were both buried at the Heater Cemetery in Gilmer Co., West Virginia.I am not sure where Nancy was buried (or I didn't make myself a note).
It seems many of their descendants mainly lived and stayed in Gilmer Co., so I was also able to track many of them.If you would like more info on them I can surely send you what I have found.