There are 24 hits for VS-6 on this page with five associated with Midway.
4518/4691 Douglas SBD-3 Dauntless
4526 (VS-6) attached to USS Enterprise, lost at Battle of Midway Jun 4, 1942
4600 (VS-6) attached to USS Enterprise lost in Battle of Midway Jun 4, 1942.
4604 (VS-6) destroyed on deck of USS Enterprise 6/4/42 due to enemy action. Another reference has this plane being with VB-8 and assigned to USS Hornet and lost at Midway Jun 5, 1942
4612 (VS-6) attached to USS Enterprise, lost Battle of Midway Jun 4, 1942.
4615 (VS-6) attached to USS Enterprise, shot down 6/4/42, Battle of Midway.
There are six hits for VS-6 on this page with five associated with Midway.
US Navy and US Marine Corps BuNos--Third Series (00001 to 10316)
03185/03384 Douglas SBD-3 Dauntless
03206 (VS-6) attached to USS Enterprise (CV-6) lost Jun 4, 1942, Battle of Midway
03207 (VS-6) attached to USS Enterprise (CV-6) lost Jun 4, 1942, Battle of Midway
03208 (VS-6) attached to USS Enterprise (CV-6) lost Jun 4, 1942, Battle of Midway
03224 (VS-6) attached to USS Enterprise (CV-6) lost Jun 4, 1942, Battle of Midway
03225 (VS-6) attached to USS Enterprise (CV-6) lost Jun 4, 1942, Battle of Midway
You can also do a Search for VS-6 in the upper right and get multiple hits which may or may not provide more information.