This is probably a silly question but what type of job was a quartermaster? We know this patch was not my grandfather's who entered the Navy Seabees at a higher rank of petty officer. He left as a Chief Petty Officer. His business before entering was a mechanic and garage owner.
Another relative, a great uncle, enlisted as same time as my grandfather. He was a chef. He was also given rank of petty officer. They both were in their 40's.
Thanks for your response. Maybe evenutally we will find who this belonged to in the family.