According to the sesquicentennial memoirs of Allegany, NY, Henry and
Catherine Zimmerman Altenburg came to Allegany in 1845. They had
previously lived in Ellington, Chautauqua Co., from 1828 - 1845.
According to Ellis' "History of Cattauragus County, NY" (1879), "John and
Henry Altenburg settled on the south side of the Allegany river in 1835."