Maria Jannetta THUMANN
- Birth: 11 Mar 1854, Amsterdam, Noord-Holland, Nederland
- Death: 29 Jun 1945
- Partnership with: Jan Adrianus Jacobus KLETON
- Child: Jansje KLETON Birth: 1 Jul 1886, Amsterdam, Noord-Holland, Nederland
Descendants of Maria Jannetta THUMANN
1 Maria Jannetta THUMANN =Jan Adrianus Jacobus KLETON 2 Jansje KLETON =Andries Fredrik Hendrik SANDBERGEN Marriage: 5 Mar 1914, Watergraafsmeer, Noord-Holland, Nederland