These quotes relate to the Spithead Mutiny. The Nore Mutiny happened the same year.

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General Crosbie and several Field Officers arrived at Portsmouth on Tuesday. There are now two thousand troops in that town, one thousand at Portsea, two thousand at Gosport, one thousand at Farnham, three thousand at Hilsea, besides two or three regiments on their march for the former place. There are also seven Volunteer Companies in that neighbourhood. Sir William Pitt, the Governor, has desired them all to be ready at a moment’s notice. The water was let into the moats round the garrison on Tuesday; all the guards were doubled, and every gate of the garrison was locked at ten o’clock.

— The Observer, Sunday 14 May 1797

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ANOTHER LETTER.

This morning General Crosbie and several Field Officers arrived here.

There are two thousand troops in Portsmouth, one thousand in Portsea—two thousand at Gosport—one thousand at Farnham—three thousand at Hilsea, besides two or three regiments on their march for this place.

There are also seven Volunteer Companies in this neighbourhood.

Sir William Pitt, the Governor, has desired them all to be ready at a moment’s notice.

— Staffordshire Advertiser, Saturday 13 May 1797 source