Fact: Residence (1829) Fitchburg, Worcester, Massachusetts, United States
Sources
"Massachusetts Births and Christenings, 1639-1915," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:F4X3-8X8 : 10 February 2018), Mary Ann Derby, 07 Jun 1829; citing , 128; FHL microfilm 758,480.
"Massachusetts, Town Clerk, Vital and Town Records, 1626-2001," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FHRP-BFL : 17 October 2017), William P. Smith and Mary Ann Derby, 24 Feb 1859; citing Marriage, Fitchburg, Worcester, Massachusetts, United States, , town clerk offices, Massachusetts; FHL microfilm 2,258,329.
"Massachusetts Births, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FX4N-XTX : 10 March 2018), Margaret Derby in entry for Abby Elisabeth Smith, 10 Dec 1859, Fitchburg, Worcester, Massachusetts; citing reference ID #, Massachusetts Archives, Boston; FHL microfilm 1,428,238.
"Maine Vital Records, 1670-1921," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KCDG-4K7 : 23 September 2017), Mary A Smith, 27 Oct 1901; citing Bangor, , Maine, United States, Division of Vital Statistics, State Board of Health, Augusta; FHL microfilm.