"Massachusetts, Town Clerk, Vital and Town Records, 1626-2001," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:F4V2-W2Z : 5 November 2017), Charles Presten Marsh, 11 Jan 1841; citing Birth, Millbury, Worcester, Massachusetts, United States, Massachusetts Secretary of the Commonwealth, Boston; FHL microfilm 007009544.
"Rhode Island Births and Christenings, 1600-1914," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:F8MT-PCQ : 10 March 2018), Charles P. Marsh in entry for Carrie Emily Marsh, 19 Jan 1867; citing Cranston, Providence, Rhode Island, reference p 205; FHL microfilm 931,514.
"Massachusetts Births, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FXZF-SKN : 11 March 2018), Charles Marsh in entry for Harriet Amelia Marsh, 25 May 1868, Attleboro, Bristol, Massachusetts; citing reference ID #87, Massachusetts Archives, Boston; FHL microfilm 1,428,039.
"Massachusetts Births, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FXN7-VZW : 11 March 2018), Charles P. Marsh in entry for Frederick P. Marsh, 26 Nov 1870, Attleboro, Bristol, Massachusetts; citing reference ID #85, Massachusetts Archives, Boston; FHL microfilm 1,428,073.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MH69-K6F : 15 August 2017), Charles P Marsh, Attleborough, Bristol, Massachusetts, United States; citing enumeration district ED 77, sheet 354A, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,523.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2NX-8FW : accessed 14 October 2019), Charles P Marsh, Wellfleet, Barnstable, Massachusetts, United States; citing enumeration district (ED) ED 19, sheet 8A, family 236, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 571; FHL microfilm 1,374,584.
"Massachusetts State Vital Records, 1841-1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:23RT-9GH : 13 March 2018), Charles P Marsh, 18 Mar 1916; citing Death, Wellfleet, Barnstable, Massachusetts, United States, certificate number 5, page 36, State Archives, Boston.
Find A Grave, database and images (https://www.findagrave.com : accessed 14 October 2019), memorial page for Charles P. Marsh (11 Jun 1841–18 Mar 1916), Find A Grave: Memorial #178102039, citing Hillside Cemetery, Auburn, Worcester County, Massachusetts, USA ; Maintained by Bob L. (contributor 48228855) .