1870 US Census, Population Schedule; Dwelling #228, Family #236;Sarah F., age 7, daughter of Isom Lamb, age 47, Head of Household. Source Citation; Census Place: Wyacondah, Davis, Iowa; Roll: M593_386; Page: 202B; Family History Library Film: 545885 From: 
1880 US Census, Population Schedule; Dwelling and Family #93; Sarah, age 17, daughter of Isom Lamb, age 57, Head of Household. Source Citation; Census Place: Wyacondah, Davis, Iowa; Roll: 336; Page: 144B; Enumeration District: 052 From: 
It may be possible to confirm family relationships with Sarah by comparing test results with other carriers of her ancestors' mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Sarah: