According to the information I have accumulated, Josef Rundhammer's parents were Johann Rundhammer and Tressa Pilz.
His first wife, the Maria Deubler you refer to, died 2 September, 1878. In 1892, he married Mary Androsco. Start your search in Manitowoc and Shawano counties in Wisconsin. You will find most of your information there.
Josef Rundhammer was born 17 January, 1841.