William Obreiter was born in 1853 in Pennsylvania.
He likely moved to Lancaster with his parents, but left home sometime around 1870. The 1880 census shows him living with relatives of Sarah's husband in Hoboken, where he worked as a cigar maker. He later set up shop with his brother Joseph.
On December 15, 1880, at St Michael's Evangelical Lutheran Church in New York City, William married Margareth (Margaret) Weber. They had one child, Robert Edward Obreiter, who was born on July 23, 1882, and died at the age of 9 on July 24, 1893.