Re: 1870 Missouri Mortality Schedule
I have looked into Tabitha Decker's origins a little bit as well. Her marriage record in Franklin Co, MO, to Jacob Fitzwater says she was Mrs. Tabitha Decker at the time. I could not find a record of her first marriage in the county.
The 1840 census for Franklin County shows a Jacob Decker right in the middle of many others who went together to Holt County, such as Duncan, Fitzwater, Musick, etc.
Jacob was age 30-39, he had a wife age 15-19, and a daughter under 5. These fit with Tabitha born c.1822 and her daughter Malissa born c.1838.
I thought he would be probably worth investigating more.