1850 Washington, Erie Co., Pennsylvania
Tarball, David, ge 38, PA
" Sarah, age 27, PA
" Mary Ellen, age 3, PA
" Elisha, age 10/12, PA
Kingsley, Esther, age 25, PA
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David is not found in the 1860 or 1870 census. He and Sarah probably had more children than what is noted in the 1880 census.

Home in 1880: Washington, Erie, Pennsylvania
David Tarbell 68, PA, MA, Ireland (father and mother's birth place are same as Samuel)
Sarah Tarbell 60, PA, NY, NY
Carrie Tarbell 24, PA, PA, PA
Phebe Tarbell 18, PA, PA, PA