The Third Nail, Inc. was an inpatient drug rehabilitation therapeutic community. It did exist for a time in an old police station at Roxbury Crossing, where Roxbury Community College is now located. It moved to the Jefferson School on Heath Street in Jamaica Plain, Boston, the area is known locally as the Back of the Hill, being the back of Mission Hill. The Jefferson School was attached and taken by the IRS for back taxes and sold to a condo developer. The inpatient program then closed in 1984. The building and condo is at 240 Heath St Jamaica Plain, Boston,MA. The Third Nail had an outpatient office on Washington Street near Commonwealth Avenue in Brighton, Boston, MA and was the outpatient component simultaneously with the inpatient program. Bill McCue did direct the Third Nail, Inc. but I don't know whether he started the program. He may have started another program before it in the early 1970s.
Daytop Village was started mostly with the help of Monsignor Bill O'Brien in a town on Long Island, NY and then it spread to other areas.