Sources |
- [S56] Boonstra Committee, Boonstra Genealogie, (Drukkerij de Jong, Grou, September 2000), Fam. 10, p. 55 III-II-1, III.
- [S56] Boonstra Committee, Boonstra Genealogie, (Drukkerij de Jong, Grou, September 2000), Fam. 10, p. 55 II-1, III.
- [S56] Boonstra Committee, Boonstra Genealogie, (Drukkerij de Jong, Grou, September 2000), Fam. 10, p. 55 II.
- [S56] Boonstra Committee, Boonstra Genealogie, (Drukkerij de Jong, Grou, September 2000), Fam. 10 page, p. 55 III, bottom.
- [S56] Boonstra Committee, Boonstra Genealogie, (Drukkerij de Jong, Grou, September 2000), Fam. 10 p. 55 III.
|