| Authorised form of name | Day; John (c 1738 - 1808) |
| Dates | c 1738 - 1808 |
| Nationality | British |
| Date of birth | c. 1738 |
| Place of death | Richmond, Surrey |
| Date of death | 14 June 1808 |
| Occupation | Lawyer |
| Activity | Career: Advocate General, Bengal Freemason, Member, before 1768, Old Horn Lodge No 2 |
| Membership category | Fellow |
| Date of election | 06/06/1793 |
| Relationships | Married the eldest daughter of Nicholas Ramus |
| Source | Sources: Bulloch's Roll References: The Library and Museum of Freemasonry 'Freemasons and the Royal Society; Alphabetical List of Fellows of the Royal Society who were Freemasons' 2010, page 26 |
| Code | NA2764 |
Archives associated with this Fellow
| RefNo | Title | Date |
| EC/1793/08 | Day, John: certificate of election to the Royal Society | |
| MS/391/232 | Bond of Sir John Day to the Treasurer of the Royal Society | 9 December 1793 |