marriage between Johannes Keller, son of Hans Michael Keller, and Magdalena Lingenfelder, daughter of Hans Michel Lingenfelder, on 20 Jan 1736 in Rohrbach-Steinweiler.[17] In the German births index, I found the following children of Johannes and Maria Magdalena (Lingenfelder) Keller:
Maria Margaretha Keller, born 27 Oct 1737, bapt. 1 Nov 1737[18]
Abraham Keller, born 3 Jul 1740, bapt. 3 Jul 1740[19]
Johann Philipp Keller, born 9 Nov 1743, bapt. 11 Nov 1743[20]
Johannes Keller, born 12 Dec 1746, bapt. 16 Dec 1746[21]
Johann Michael Keller, born 1 Dec 1749, bapt. 3 Dec 1749[22]
http://www.krishocker.com/ulrich-hoover-visualizing-connections/