- Ancestry.com (In-library use only)
A genealogical tool containing more than 1.5 billion names in over 4,000 databases such as vital records, census data, World War I draft registrations, passenger lists and much more. Records for Canada, the United Kingdom and Ireland can also be accessed with a Sandwich Public Library card.
- Cape Cod Genealogical Society
A local non-profit dedicated to assisting the community research their family history.
- Cape Cod Gravestones
Compiled by Bob Carlson (1934–2025), this site includes burial records and headstone photographs spanning all fifteen towns on Cape Cod
- Ellis Island Foundation
Free searchable database of passenger lists and photos between 1892-1924. Free registration required.
- National Genealogical Society
Tips and tricks to building your family tree, finding sources, and overcoming roadblocks.
- Massachusetts Archives
Includes information about records kept at MassArchives and at other institutions.
- Massachusetts Family History Research
Resource guide for finding Massachusetts records, including: census, land, military, church, and immigration.
- Family Search
Comprehensive site containing information about starting family history, finding ancestors in their records collection, links to other genealogical websites, and the Family History Library Catalog.
- Cyndi's List of Genealogy Sites
An extensive index (with links to the sites) of genealogical resources on the Internet.
- Social Security Death Index
An index to basic information about people with social security numbers whose deaths have been reported to the Social Security Administration. About 98% of the people in the SSDI died after 1962, but some death dates go back as far as 1937.
- Allen County Public Library
Located in Ft. Wayne, IN, its' collection contains more than 350,000 printed volumes, including family histories; census records; city directories; and more; and one of the largest English language genealogy and local history periodical collections in the world.
- Massachusetts Special Collections Directory
Find local archival & special library collections. The Manuscripts, Archives and Special Collections Directory profiles collections in more than 650 Massachusetts libraries, archives, historical societies and town clerk's offices. Provided by the Massachusetts Board of Library Directors.
- Wiki Tree
A completely free, collaborative genealogy platform with over 1,000,000 members. WikiTree balances privacy and collaboration so that living people can connect on one world tree to common ancestors. Massachusetts related projects and resources and combine that information into one place.
- Community History Archives
Explore over 1,000 Community History Archives offered by institutions that have partnered with Advantage Archives to provide free access to local primary sources.
- Steve Morse
Tools for finding immigration records, census records, vital records, ship manifests, and more.