In 1836 he married Katharine Juliana Georg in Germany. They had three children there:
Philipp Jacob Wagner, Jr (8 Jun 1845 - 2 Jan 1865);
About 1852 the family came to the United States. They had two more children:
Philipp disappeared after 1872 from Comal County, Texas. He was never found. Philipp has a marker at this cemetery to honor his memory.