| AASLH American Association for State and Local History | www.aaslh.org |
| Connecticut Humanities Council | www.ctculture.org |
| Connecticut Humanities Council Heritage Gateway |
www.ctheritage.org |
| Connecticut Historical Commission | www.cthistorical.com |
| Connecticut Historical Society | www.chs.org |
| Connecticut History Online | www.cthistoryonline.org |
| CLHO Connecticut League of History Organizations | www.clho.org |
| Connecticut State Information | www.connquest.com |
| Connecticut State Library | www.cslib.org |
| Denison Homestead | www.denisonhomestead.org |
| Indian & Colonial Research Center |
www.indianandcolonial. |
| Five Rivers Consortium | 5rivcon.org |
| Town of Groton (CT) | www.town.groton.ct.us |
| Groton Public Library (historical photos and postcards) |
www.town.groton.ct.us/history/list.asp |
| Groton Public Schools | www.groton.k12.ct.us |
|
Ledyard Historical Society |
www.ledyardhistory.org |
| Lyman Allyn Museum | www.lymanallyn.org |
| Museum of Connecticut History | www.cslib.org/museum.htm |
| Mystic Aquarium | www.mysticaquarium.org |
| Mystic Art Center | www.mysticarts.org |
| Greater Mystic Chamber of Commerce | www.mysticchamber.org |
| Mystic/Noank Library | www.mysticnoanklibrary.com |
| Mystic Seaport Museum | www.mysticseaport.org |
| New London County GenWeb | www.rootsweb.com/~ctnewlon |
| New London County Historical Society | www.newlondongazette.com |
| Noank Historical Society | www.noankhistoricalsociety.org |
| North Stonington Historical Society | www.nostoningtonhistsoc.homestead.com |
| Stanton-Davis Homestead | www.stantondavishomestead.org |
| Stonington Garden Club | www.stonington-gardenclub.org |
| Stonington Historical Society | www.stoningtonhistory.org |
| Town of Stonington (CT) | www.munic.state.ct.us/stonington |
| Submarine Force Library & Museum | www.ussnautilus.org www.submarinemuseum.com |
| Waterford Historical Society | http://www.waterfordhistoricalsociety.org |
| Westerly (RI) Historical Society | www.westerlyhistoricalsociety.com |