| Authorised form of name | Wilhelmius; Wilhelmus (1720 - 1771) |
| Dates | 1720 - 1771 |
| Date of birth | 1720 |
| Date of death | 27 December 1771 |
| Membership category | Fellow |
| Date of election | 27/01/1743 |
| Source | Sources:
Bulloch's Roll |
| Code | NA5395 |
Archives associated with this Fellow
| RefNo | Title | Date |
| L&P/1/202 | Letter, 'Concerning his election as a Fellow of the Royal Society' from Wilhelmus Wilhelmius to the President of the Royal Society | 18 May 1743 |
| EC/1742/30 | Wilhelmius, Wilhelmus: certificate of election to the Royal Society | 27 January 1743 |