Benjamin was b.~1835 in IL; Harriet O. was b. ~1838-41 in OH.Per the 1860 census, they had (1) son - James F. b. 1858 in IL. They are nowhere to be found in 1870 or after! Specifically, I am trying to get more info. on Harriet O. Wilder and hopefully her birth location and maybe specific date. Very wiulling to share any info. I have.