"The Arrowhead is another commonly used symbol in Navajo art. The Arrowhead symbolizes protection and defense and is often used in jewelry and pottery designs. It is believed that wearing or displaying the Arrowhead symbol can offer physical and spiritual protection."

Also, I’m 99% sure he is Muscogee, as he’s buried in Muscogee county as it says on his find a Grave.

That could be it? Still doesn’t explain the significance of the Number of them? Or maybe I’m overthinking it…

One possible meaning....   "Arrowhead The Alertness Symbol The Arrowhead, a crucial component of the arrow, takes on its symbolism. It represents alertness, readiness, and vigilance, characteristics essential for survival in the wilderness. Native Americans recognized the importance of staying vigilant in their daily lives, and the arrowhead serves as a constant reminder of this wisdom."

100%   it’s always nice to see everyone rally in one post 👍

Probably won’t need to ask an elder, I’m nearly positive he’s Muscogee, because that’s what the whole family is, but like I said in the beginning it’s kinda mixed with Navajo, I’ll ask the original source of the info.

The correct way to abbreviation for a year is an apostrophe before the last two numbers. For 1961 this would be '61, not 61'. Not commenting on the rest of the helmet but not everything is "wrong".   Dave

This is turning out to be a very good thread. Lots of good detective work, and obviously some good detectives. Some good practical collecting advice , and folks helping each other out. USMF at its finest.  mikie

I am not a native, Who were his people and ask an elder of his tribe.

I do not think that is a KIA head stone. Everyone who has served honorably and has been  discharged as such earns the right to a military burial.