Final answer:
Charlotte Edith Anderson Monture was the first female nurse officer to be advanced to E-7 in the military.
Step-by-step explanation:
The first CG active duty female advanced to E-7 was Charlotte Edith Anderson Monture. She was a nurse and an officer, and she served in World War II. Edith Anderson was from the Six Nations and was one of about 2,000 First Nations people to serve in the war. It is important to note that Edith Anderson Monture was not a CG (Coast Guard) officer, but rather a nurse officer. The question seems to have factual inaccuracies.