1260 Khz, 1000 watts,
Thanks to an excellent website run by Bill Defelice the early history of this stations is well documented:
http://www.ctradiohistory.org/wmmm/
WCFS years
http://www.ctradiohistory.org/wmmm/the-WCFS-years.html
In 2000 the station was donated to WSHU at Sacred Heart University and became WSHU-AM.
WMMM Transmitter building before demolition in '05