 And in 1974, Mitchell led another successful campaign to prevent the Air Force from cutting 1,500 jobs at the Rome Air Development Center at Griffiss Air Force Base in Rome, NY

In 1982, at the behest of Broadway Producer Joe Papp, and with the encouragement of members of his family and others involved in a "Save the Theatres" effort to preserve historic Broadway theatres in New York City, Mitchell introduced legislation in the Congress along with 13 co-sponsors to designate a "Broadway/Times Square Theatre District National Historic Site" in Mid-Town Manhattan.Mitchell's bill (97th Congress – H.R.6885) faced fierce opposition and extensive lobbying mounted against it by Mayor Ed Koch's administration and big-money Manhattan development interests.Although the measure was, consequently, never enacted – the overall effect of his legislative initiative and of the "Save the Theatres" effort generally, however, was to slow down the rapid destruction of the old Theater District.