1820 Census record of Instant Lay; Caswell Co NC:

1 male <10
1 male 16-26 (Instant was 27)
1 female <10
1 female 16-26 (Sarah was 24)
[Neighboring entries were families of George Lay and David Lay.]

1830 Census record of Instant Lay; Pulaski Co KY:

2 males <5 (George, age 2; William, age 4)
2 males 5-10 (Instant Jr., age 9; David, age 5)
1 male 40-50 (Instant Sr)
1 female 10-15 (Susannah)
1 female 30-40 (Sarah, age 34)

1840 Census record of Instant Lay; Pulaski Co KY:

2 males 5-10 (Burrell, age 8; James, age 6)
2 males 10-15 (George, age 12; William, age 14)
2 males 15-20 (Instant Jr., age 19; David, age 15)
1 male 50-60 (Instant Sr.)
1 female 40-50 (Sarah, age 44)

1850 Census record of Instant Lay; Pulaski Co KY, family 208:

Instant Lay, Sr., 57, farmer, VA
Sarah Lay, 54, NC
Burrel Lay, 18, KY
James Lay 16, KY

Instant Lay will, dated 7 Oct 1857:601

I will my wife Sarah all my estate. After her death, my will is the rest to be divided among my children. Witnessed by G. R. Lay, David Lay, G. M. Carson

Sarah is listed on the 1870 census of Pulaski Co KY as a member of the household of George Lay and Sarah Hines Lay.