I may have some additional information regarding your gggparent Jacob Edward Keiffer. My wife's ggrandmother is Marie Keiffer b. 14 Jan 1861 Olean NY [have another b. date 24 Jan 1859 arn't sure which is correct] d. 1930 Alhambra CA, m Elisha Edward Lawrence b 6 Jun 1853 Cleveland Ohio d. 1925 Alhambra CA.
Marie Keiffer had a brother Jake Keiffer b. 31 Oct 1864 NY.
Could Jake Keiffer and Jacob Edward Keiffer be the same person?