There was a Milton Haggerty that sold real estate in the Wayne County, PA area in the late 1960's and possibly early 1970's for Peter McGinnis Real Estate Agency. He was blind and resided in a home near Honesdale, PA, possibly with his elderly mother. He was not a relative of the "Irish" Haggerty's of the "Little Egypt" area of Mount Pleasant Township, Wayne County, PA.
Does this sound like your Milton Haggerty? If so, I can provide you with the names and phone numbers of those who worked with him in real estate.Please let me know.