District Lodge 91 received its charter in May 1953. At that time the representative locals consisted of Hartford Aircraft Lodge 743, chartered in 1941, representing workers at Hamilton Standard (located in East Hartford until 1952 when it moved to Windsor Locks); Industrial aircraft Lodge 1746, chartered in February, 1945, representing workers at Pratt and Whitney, East Hartford; and Industrial Aircraft Lodge 1746A, chartered in October, 1951, representing Pratt and Whitney workers in Southington. In March 1959 Canal Lodge 700, in Middletown, was chartered and added to District 91 representation. Prior to 1953, Pratt and Whitney workers' lodges were part of IAM District 26. As of 1984, District 91 included Lodge 700, Lodge 707 (from North Haven), Lodge 743, Lodge 1746, and Lodge 1746A.
The collection consists of administrative files, photographs, and DVDs associated with the formation, maintenance and demise of the Connecticut Central Railroad, a freight line that ran in and around Middletown, Connecticut, from 1987 to 1998.
Connecticut's Archives Online