| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The flowering orchard: Genealogy of an American branch of the Bogaard family that lived in the medieval Dutch town of Utrecht, covering the period from about 1320 to 1974 | 978-9O-8OOOO6-1-2 (9O-8OOOO6-1-2) | 1974 |