Jacob Klink married Mary Louisa Fox about 1875 in Williams, Ohio per the FamilySearch site of the LDS Church.Is it possible your Jacob is son or GRANDSON of (Christian also had brothers & his parents are on the LDS site):
Christian Klink born 10 Sep 1793 in Sieglesburg, Wurtenberg, Germany married 17 Aug. 1825 in Steuben County, IN to Mary Failor died 18 May 1872
Louisa, born 19 July 1827, Seneca County, Ohio
John Klink, born 01 Mar 1829, as above
Caroline Klink, born 05 Dec. 1830 in Richland, Ohio
Catherine Klink, born 27 July 1834, my gr-gr Aunt, married Morris Brown in Steuben, IN.
Michael Klink, born 09 May 1836.
Mary Klink, born 03 June 1838.
Elizabeth Klink, born 30 Nov 1840 in Seneca, Ohio.
Christina Klink, born 13 Oct. 1842 in Seneca County, Ohio.
Eli Klink, born 15 Oct. 1843.
All this is on the web site of LDS Church & is free.They list the parents of Christian Klink & Mary Failor also.
I found this when looking for Morris Brown & Catherine Klink.