| Name | William E. Sieker |
| Date of birth | 1912 |
| Date of death | 1982 |
| Remarks | [collector note: Wisconsin; specimens at WIS] [biographical note: known for studying Lepidopterans, specifically Sphingidae (Moth Hawks)] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/da43b3f7-4969-4559-bb5b-be54536df5f8 |
| Variant name | Wm. Sieker |
| Variant name | Sieker, W. E. |
| Standard/Label Name | W. E. Sieker |
| Full Name | William E. Sieker |
| Geography Collector | United States of America |
| Specialty Collector | Spermatophytes |
| Citation as Collector | specimen (GH) Carex gynocrates |
| Member of teams/groups | |
| Collector Teams: | N. C. Fassett & W. E. Sieker |