Under construction

Southington

Southington Historical Society
Southington Library
Barnes Museum

Regional

Godfrey Library
Connecticut State Library History and Genealogy Unit
Connecticut Historical Society

Major Genealogy Sites

Ancestry.com
Familysearch.org
HeritageQuest (Free from Researchitct.org with CT Library Card)
Fold3 (free from CTState Library with CSL Card)

Newspapers

Southington Newspapers

Immigration

Ellis Island
Castlegarden.org