GDG- information request

[GEODEUTSCH at aol.com]

This may be off topic, but I hope someone from the group could help me  
identify the unit a soldier served in. I recently bought a picture album in  
Pennsylvania & a on CDV in it was penciled "Lt. Murray, CYA". I  looked through the 
index to Bates & found several Lt. Murrays, but no  reference to a unit that 
could approximate the initials following that name. Can  anyone help?
Thanks,
George Deutsch