| Name | Theobald, William Louis | 
| Date of birth | 1936  | 
| Remarks |  [author note: PTBG: Comparative anatomy of Apiaceae, Acanthaceae and Gesneriaceae of Sri Lanka] [collector note: Hawaiian Is. (& other Pacific Is.?): BISH, PTBG] | 
| ASA Botanist ID | 132605 botanist | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7e8591fa-2567-408a-b3e9-eb57a970d98a | 
| Variant name | William Louis Theobald | 
| Author name | W. L. Theobald | 
| B & P Author Abbrev. | W. L. Theob. | 
| Standard/Label Name | W. L. Theobald | 
| Full Name | Theobald, William Louis | 
| Geography Author | United States of America | 
| Geography Collector | United States of America | 
| Specialty Author | Spermatophytes | 
| Citation as Author |  Authors of Plant Names. Royal Botanic Gardens, Kew | 
| Citation as Author |  Index Herbariorum. Part 1: The Herbaria of the World. Eighth Edition. Bronx, NY | 
| Citation as Collector | Index Herbariorum - Collectors T-Z  | 
| Citation as Collector | Index Herb., ed. 8Index Herbariorum - Collectors T-Z  | 
| Member of teams/groups |  | 
| Collector Teams: | Mathias & W. L. Theobald   | 
| Author Teams: | Mathias & W. L. Theobald   |