My sister was a Camp Fire Girl. My mother was her assistant group leader. I remember the meetings well. If I remember correctly, the ladder went:
- Blue Birds (ages 7-8)
- Adventurers (ages 9-11)
- Horizon Club (ages 12-17) [their uniform had a nifty yellow blazer]
The organization is actually older than the Boy Scouts, having begun in 1910 by a physician, Dr. Luther Gulick. They would do things together with the Boy Scouts, at least until a group which began in 1912 as Girl Guides became the Girl Scouts in 1915. Actually, they followed the Boy Scouts a lot until the Camp Fire Girls went coeducational in 1975. Then they became the Camp Fire Boys and Girls. In 2001 the name was changed to Camp Fire USA.