Johannes Antonius Janssen
| Sex: | Male | |
| Father: | Marius Janssen | |
| Mother: | Eelkje Bruining | |
| Birth: | 8 Feb 1863 | 's Gravenhage, ZH, NL |
| Death: | 1 Dec 1936 | 's Gravenhage, ZH, NL |
| Occupation: | Commies posterijen | |
Family 1
| Spouse/Partner: | ? ? | b. Bef 1920 d. (?) |
| Civil: | 28 Sep 1920 |
Family 2
| Spouse/Partner: | Johanna van der Schaaff | b. (ca 1880) d. Bef 1920 |
| Civil: | 18 May 1899 | Zutphen, GL, NL |
| Children: | ||
Jacoba Elisabeth Johanna Janssen
 |
b. Aft 1880 d. Aft 1922 | |