We know the Green Post exists by this point. Our first definite attestation for the Battle of Minden is only three years later. The phrasing “at Hilsea Barracks” is interesting, I don’t think that describes the Green Post.

Quote

COUNTRY NEWS.

Portsmouth, Dec. 10. On Monday about eleven o’clock in the morning, a publican at Hilsea Barracks near this town, shot himself thro’ the head in the necessary-house with a pistol; he had attempted to hang himself, but failing in that, effected it in the above manner. This man some time ago had a fall from his horse, which dislocated his neck, and ‘tis thought hurt his head, which caused a delirium; the consequence of which was his committing the aforesaid rash action.

The account of the death of Sir Thomas Ridge, as mentioned in the papers, is premature, that gentleman being still living.

Salisbury and Winchester Journal, Monday 16 December 1765 source