my name is Gertie Bruhnke, I live in Kaiserslautern, wich is only a few kms away from Fröhnerhof.My nee name is Hemmer. The following dates for Maria Magdalena Hemmer nee Gall are available in my genealogy dates for the HEMMER-family:
Maria Magdalena Hemmer nee Gall born 1 Apr 1802 in Neukirchen (village adjacent to Fröhnerhof) Marriage 8 Mar 1834 in Neukirchen (also church-place for Fröhnerhof) She had married Johann Adam Hemmer (Farmer) born 3 Apr 1803. When she married, she had already 2 children, who were adopted by her husband. Joseph Hemmer, born 13 Feb 1826, Fröhnerhof Johannes Hemmer, born 13 Nov 1829, Fröhnerhof (Farmer) Franz Hemmer, born 24 Sep 1834, Neukirchen
I have information that Johannes Hemmer emigrated in 1854 - it is unknown, where he went to (USA?)
He may have been in possession of the grave marker.