I also know a man who served as a gunner on avengers flying from the escort carrier USS Marcus Island. Note the bump under the fuselage beneath the star. That was his battle station.
TBF or TBM Avengers.
TBFs were built by Grumman.
TBMs were built by General Motors.
A WW2 veteran who served on the light carrier USS Independence says there is no way to tell the difference without consulting the builders plate.
I believe they were a Grumman design.
