I suspected as much, but we will need more legal advise like this. We are just beginning to gather our forces and will make this a legal fight. In fact, other groups do meet at the same facility. We are being excluded strictly on religious grounds. The director of the historical society indicated so over the telephone. We have asked for an explanation in writing so we can create a paper trail. Then we go to work. I'll keep y'all posted.
If the historical society is publicly funded, then this is a violation. Religious groups need to be treated the same as non-religious groups in situations like this.
Keep in mind, the director might simply be ignorant, rather than malicious. A lot of people don't understand the law- they think that government bodies such as schools, community centers etc. have to exclude religious groups from using their premises or they're violating the Constitution. In reality, it's exactly the opposite.