On 30 May, Collier joined the British assault on Stony Point, New York providing support for Sir Henry Clinton, sinking an American rebel ship carrying loot and supplies removed from the fort. One of the few naval commanders able to get along with Clinton, Collier also provided naval support for William Tryon's raid of Connecticut ports in July before returning to New York in late-August.
On May 30th, Collier joined the British assault on Stony Point, New York, providing support to Sir Henry Clinton by sinking a rebel ship carrying stolen goods from the fort. He also provided naval support for William Tryon's raid of Connecticut ports in July before returning to New York in late August.