Great idea to pursue.
I just did a quick check on my little island state and noticed the following....
Some of the teams listed are no longer participating in FIRST. Understandable.
As well there are a few that were not listed and sadly we were one of them.
I did check and we are listed on The Blue Alliance.
http://www.thebluealliance.com/team/3880/history
We are not that new of a team, 4 years and running strong..
Let alone the other missing team, 1378, from our island that has been in FIRST since 2004...
Good luck with this, I will keep checking in on it from time to time. It is a great way of showing the students how big FIRST has become and how much it can still grow..
Aloha!