| Name | Margadant, Willem Daniel |
| Date of birth | 1916 |
| Date of death | 1997 |
| Remarks | [author note: Biography & Photograph in: Lindbergia 26: 57-61. 2001] |
| ASA Botanist ID | 102792 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/cb4e830d-0170-466c-9946-61b13c8659c2 |
| Variant name | Willem Daniƫl Margadant |
| Author name | Margadant |
| B & P Author Abbrev. | Margad. |
| Standard/Label Name | W. D. Margadant |
| Full Name | Margadant, Willem Daniel |
| Geography Author | Netherlands, United States of America |
| Specialty Author | Bryophytes |
| Citation as Author | Authors of Plant Names. Royal Botanic Gardens, Kew |
| Member of teams/groups | |
| Author in | Bekn. Fl. Ned. Blad. Leverm. |
| Collector Teams: | R. J. van der Wijk & W. D. Margadant |
| Author Teams: | Wijk & Margadant |