1820 Meigs Twp, Adams Co, OH. The census taker recorded him as Jacob Zumalt, over 45 years of age, with 1 male under 10, 2 at 10-16, 1 age 16-18, 2 at 16-26, 2 females under 10, 2 other females but page is torn so ages are unclear. Five doors down was John Spurgin. Daughter Nancy and William Davis were in the same township. Jacob was the only Zumwalt in OH that year.
1830 Brandywine Twp, Hancock Co, IN. At census time Jacob was 50-60 years old with a household that included 1 male age 10-15, 2 at 20-30, 1 female age 15-20 and 1 also 50-60. Four doors down the road was son Joseph Zumwalt, age 30-40.
His birth year conflicts with sister Paralee, unless they were twins. And the 1810 census says he was over 45, making his birth year 1765 or before.