My mother, Anna, was the daughter of Franz Erber, born in Scholzengrund, Schlesien, Germany, in 1861. I believe I have a listing of all of Grandfather's descendants, but the only information I have from Franz Erber's siblings is of the sisters' surname of their husband.
My great-grandfather, father of Franz Erber, was Stefan Nikolaus Erber, born in the same village in 1823. Stefan Erber had nine children: Maria, August, Anna, Franz (died age 12), Josepf, Berta, Magdalena, Anton and Franz, my grandfather.
Stefan's father was Anton Erber born about or before 1700.
Perhaps your ancestor is a branch of one of the above.