From Ancestry.com Wiki
Winthrop is a town in Massachusetts. It was formed in 1846 and was previously called Chelsea (N. Chelsea). It can be found in Suffolk county. For more information, contact the county at 1 Metcalf Sq., Winthrop 02152. On the attached map, Winthrop is shown as 2 in Suffolk county.
For information about the state of Massachusetts see Massachusetts Family History Research.
- Outstanding guide to Winthrop, Massachusetts birth, marriage, and death records, town histories, maps, city directories, cemeteries, churches, newspapers, libraries and historical societies (FamilySearch Research Wiki).