I just found this family listed as MADER in the 1875 New York State Census, living in the 14th Ward of Rochester, NY.My information now looks like this:
Seek information of John MAEDER (MADER) (b. circa 1822, Bavaria; d. 12 Oct 1898, Rochester, NY) m. Eva WEIDNER (b. circa 1823, Bavaria). Had children (all born in Monroe County, NY): Catherin (ca. 1854), Laurence (ca. 1856), Barbara (ca. 1861), John (ca. 1864) and Mary Anna (b. Mar, 1865, d. Dec., 1933)
Youngest daughter, Mary Anna, b. March, 1865 in New York State [1900 Census]. Mary married Jacob SCHULER (b. Sep, 1861 in New York State) on April 10, 1881 in Holy Family Roman Catholic Church, Rochester, NY.
Daughter Barbara married someone with surname SCHERER.