Holton-Arms has a Facebook page, open only to registered alumnae. The web page brags about their secure grad contact page (NSA approved ;>)
Yes, and it appears from some of the archive stuff I’m looking at that there was at one time an alumnae forum that was behind a login. See here for instance:
https://web.archive.org/web/20090302032701/http://www.holton-arms.edu:80/page.cfm?p=272