Jacoba Elisabeth Johanna Janssen
| Sex: | Female | |
| Father: | Johannes Antonius Janssen | |
| Mother: | Johanna van der Schaaff | |
| Birth: | 4 Apr 1900 | Zutphen, GL, NL |
Family 1
| Spouse/Partner: | Anton Marie Jantinus Roelofsma | b. (ca 1901) |
| Civil: | 12 Dec 1922 | 's-Hertogenbosch, NB, NL |