There are several women and girls who went missing within a 40-mile radius of Manchester, NH in the early 1980's with a lot of speculation as to whether the cases were related or not: Rachael Garden, 15, from Newton, NH since March 22,1980
http://www.charleyproject.org/cases/g/garden_rachael.html. Laureen Rahn, 14, from Manchester, NH since April 26, 1980
http://www.charleyproject.org/cases/r/rahn_laureen.html. Denise Daneault, 25, also of Manchester since June 8, 1980; she apparently lived only two blocks from Laureen
http://www.charleyproject.org/cases/d/daneault_denise.html. Denise Beaudin, 23, went missing with her daughter and the now infamous Bob Evans from Goffstown, NH in November 1981. She wasn't reported missing until 2016
http://www.charleyproject.org/cases/b/beaudin_denise.html. Then Elizabeth on April 6, 1984. Shirley "Tippy" McBride,15, since July 13, 1984 from Concord, NH
http://www.charleyproject.org/cases/m/mcbride_shirley.html. I bet there are more too, just haven't found them yet.