Rudolf Philipp KALTHOFF (RIN: 5957) was born 21 March 1899 in Germete, Hoxter, Nordrhein-Westfalen, Germany. He married Gertrud GRÜNE 26 October 1929 in Olsberg, Hochsauerlandkreis, Nordrhein-Westfalen, Germany. He died 24 April 1963 in Warburg, Hoxter, Nordrhein-Westfalen, Germany. Gertrud GRÜNE (RIN: 5519), daughter of August Friedrich Wilhelm GRÜNE and Maria Theresia Friederica PADBERG , was born 29 April 1901 in Olsberg, Hochsauerlandkreis, Nordrhein-Westfalen, Germany. She died 10 March 1979 in Olsberg, Hochsauerlandkreis, Nordrhein-Westfalen, Germany.