Actually there is a mix of Chamorro, Filipino, stateside Americans. The original Air Mike crews were on the Air Mike Cert and could not bid to mainline, neither could mainline bid Air Mike, not until 1998 ish when the crews were reduced from around 600 FA's to 400 or less, they allowed some Air mike FA's to take a LOA or retire or fly mainline, with a reduction of overall seniority I think. With the ability to go back to Air Mike with old seniority. some stayed, some went back.

The Japanese had a sub base for years, NRT and KIX, I am not sure what happened to them, the bases were reduced in size for sure, they were paid very well.

If you were hired Air Mike, you were trainned Air Mike, meaning no one went to IAH, All training was in Guam, except for the 747 door opening, some did it in HNL.