Only dob information I have is various year estimates from census, how to get specifics?
Gggrandfather, Peter Routh (Rauth) born in Hesse Darmstadt Germany. 1845-1849 is best calculations.
Ggrandmother Marie Barbara Kern, born in Baden, Germany. 1845-1848 is best calculations.
Unsure if married in Germany or in US. Beginning in 1875, I have census information and so forth, but without specific dob information on the two, I cannot go back further.