This is a Message Board Post that is gatewayed to this mailing list. Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/an/AFB.2ACE/1781.1 Message Board Post: Mitchellville, MA is an unincorporated part of Ayer, MA which is in Middlesex County. This means that it is part of Ayer, not an official town. Ayer is approx. 30 miles northwest of Boston. Hope this helps.