Canterbury; Catalogue of the First Congregational Church, Canterbury, Connecticut
Killingly; Church Records of Killingly, Connecticut 1715-1716
Killingly Historical & Genealogical Society, Inc.
Mansfield; Vital Records of Mansfield, CT to 1850 This database contains 8,141 births and baptisms, 4,001 marriages, and 1,553 deaths
Windham County, CT Genweb Project a collection of online resources for genealogy researchers
Windham County, Connecticut CT Index to "Windham's Bi-Centennial 1692-1892"
Windham County, CT - at the American Local History Network Site useful links to genealogy records
Windham County, CT Genealogy Forum read and post messages about your ancestors for this county
Windham County Message Board read and post messages with other genealogy researchers of this county
US GenWeb Archives for Windham County cemeteries, newspapers, wills, military rosters etc recorded online

Windham County Cemeteries

AHGP Connecticut Cemetery Transcription & Photo Project - Windham County
The Tombstone Transcription Project - cemeteries for Windham Co. CT

Windham County Censuses

Windham Co; Killingly; 1790 Census
Windham County, Willington; 1790 Census

Additional Resources

Connecticut Public Records Search find living & deceased family members/relatives including address, phone number, age..
Connecticut Birth Records
Connecticut Marriage Records
Connecticut Divorce Records
Connecticut Death Records