She is not listed on 1820 census - did she die or marry before then?? (SV-209)
1820 Wythe Co., VA census: George Cress, aged 26-45yrs with wife aged 26-45yrs, 4 males <10yrs (James, Henry, Andrew, Geo Wash.); 1 male 10-16 (David); 1 male 16-26 (who? brother Joshua?); 1 female 10-16 (Nancy or Sarah Jane?). (SV-209 & 404 pg 59, SV-578 & SV-579 & SV-1665)
1830 Wythe Co., VA Census: George Crouse (sic) 40-50 yrs; 1 Male 20-30 yrs (David); 3 Males 15-20 yrs (James W, Henry & Hiram?); 1 Male 10-15 yrs (Geo Washington); 2 Males 5-10 yrs (Jacob & Nathaniel); 1 Female 30-40 yrs (Nancy aged ~40); 1 Female 15-20yrs (Nancy); 2 Females <5 (Catherine & Elizabeth?). (SV-149 pg 111; SV-404 pg 59 & pg 724 & SV-1664)
She appears to be listed with family in 1830 census but not 1840, did she die by then or marry?