Tofterå Slettemoen genealogy
![Johan Gerardus Hendricus Sickmann](img/male.jpg)
Johan Gerardus Hendricus Sickmann
![Male](img/tng_male.gif)
Generation: 1
1. Johan Gerardus Hendricus Sickmann was born on 23 Aug 1884 in Nieuwer-Amstel, Amstelveen, Noord-Holland; and died.