You probably already know everything below, but I am including it in my reply because your request did not provide any details.
I found on Ancestry.com 8 family trees that have Christina (nee Zumwalt) Harryman with a Birth Date of 11 Mar 1808 in St Louis County, Misosuri and a Death Date of 30 Dec 1970 in Callaway County, Missouri. I also found that she married Hugh Harryman on 10 May 1827 in Callaway County, Missouri.
I found her on the 1850, 1860 and 1870 census, but did not find her on the 1880 census. On the 1870 census she was living with her daughter Nancey E (nee Harryman) Thomas and her husband John H Thomas in Cedar Township, Callaway County, Missouri. The 1870 census was completed on 09 Aug 1870, so Christina died after that date. Also she was listed as "Christeen Herriman" in the 1870 census.