The parents of Robert E. Kratz and his siblings George Frederick, Jr. (also known as Frederick, George W., William and Lula were:
George Frederick Kratz (also known as Frederick Kratz) born 1858 in Baltimore.George's parents were born in Germany.
Louisa Hammerbacker Kratz born October 27, 1860 in Baltimore. Louisa had a younger sister Annie.Her parents were born in Kassel, Germany.
George Frederick's mother may have been Catherine Kratz Rohfield, born in 1825 in Lubeck, Germany.George lived with Catherine and her (second) husband August Rohfield, who was a cooper in Baltimore in 1870.