Most data on the family of Jacob Philhower is from charts compiled by Elizabeth (Mrs. George) Laughlin, 2916 South First St., Kirksville, MO 63501 in 1985, on file at the Clermont Co. Historical Society in Batavia.

Clermont Co. Deed Books include:
v20 p 230 1821 John H. Piatt to Jacob Philhour, 106 acres survey 972
v20 p 548 1823 Jacob Philhower to Philip Gatch, 106 acs survey 972
(land patented to Jonathan Clark, sold to John H. Piatt and then to Jacob; Jacob & wife Elizabeth signed by making their marks)
vX22 p 429 1823 Philip Gatch to Jacob Philhower, 19 acres survey 9126 and 28 acres survey 987
vY23 p 402 1827 Wm Ke_ to Jacob Philhower, survey 1678 & 1676
vBB26 p 287 1829 Elst_ to Jacob Philhower, 32 ac. survey 1675 & 1676
v38 p 175 1840 Jacob Philhour to William Philhour 29, 18, & 32 acres surveys 987, 1675 & 1676

1830 census of Clermont Co., Ohio, Stonelick township, page 280, line 20:
Jacob Philhower, 1 male under 5, 1 male 15-19, 1 male 60-69, 1 female under 5, 1 female 10-14, 2 females 15-19, 1 female 50-59.

In the summer of 1830, Effie Ann would be 12, Susan Elizabeth 16, William 19, and Peter 21. Both William and Peter were recently married, William in April and Peter in May. Probably the male 15-19 is William, and one of the females 15-19 is his wife. Neither of them would have been married long enough to have a child yet, though. So I don’t know who the two children under 5 are.

Elizabeth was with her son William Philhower in the 1850 census, Clermont Co., OH, and with dau Effie Carter in the 1860 census, Madison Co., IN, 83 yrs old. (Either Elizabeth's age in this census, or her daughter Mary's birthdate on her gravestone, may be off a year or two as together they would imply that Elizabeth gave birth to Mary when she was 14 years old.)