Source #3961
| Title: | Genealogie 's Gravesande |
| Author: | Nagtegaal, H.K. |
| Publisher: | s.p.: s.n. |
| Date published: | s.a. |
| URL: | https://web.archive.org/web/20220503161540/https://genootschap-heraldiek.nl/wp-content/uploads/Genealogie-s-Gravesande-NGH-2019-3.pdf |