Hi Marion,
I do not have personal knowledge of this. It was told to me many years ago by a friend of mine who was in a different outfit. Early in 1943 the army came up with a bright idea. They were sending troops to England and getting ready for the invasions of Sicily and Italy. They wanted to insure that if a Jewish soldier were captured the Germans would not know he was Jewish by looking at his dog tags. So they issued a bunch of dog tags to Jewish soldiers where they had changed the letter H (for Hebrew) to an over-sized letter P. It may have been a great idea but it went over like a lead balloon. The men felt offended, complained and gave them back their dog tags. After which the letter H was reinstated.
Hope this is of some help to you.
Love
Dave
Proud Daughter of Walter (Monday) Poniedzialek
540th Engineer Combat Regiment, 2833rd Bn, H&S Co, 4th Platoon
There's "No Bridge Too Far"