The Becker's Email
Obtain his death certificate. It may give a place of death.
He is listed as Macus Lauskey on the 1880 census. Wife is listed as Mary rather than Sarah but children are right. On that census, his place of birth is listed as Poland. Otherwise on other census records he is listed as born Prussia or Germany.
The 1870 census indicates he is a citizen; so look for naturalization papers for 1870 or earlier.