On 6 Jan 1859 Isaac second married Marilla Siddall. Born on 4 May 1828 in Ellsworth Township, Mahoning County, Ohio. Marilla died in Atwater Township, Portage County, Ohio, on 5 Jun 1906; she was 78.
1870 Federal Census. Atwater, Portage County, Ohio
Roll 1258, page 215A
Marilla Crubaugh, 41, keeping house, $700 real estte, $100 personal estate
Louisa Crubaugh, 10
Martha Crubaugh, 9
Henry Crubaugh, 5
All were born in Ohio.