Connecticut Vital Records
Marriages were recorded in Connecticut as early as 1640. In fact registration of births, marriages, and deaths had become the town clerk's responsibility by 1650. Following the Revolution to the mid-nineteenth century, the recording is not as thorough, but by 1870 when the State Board of Health was established, recording in all towns improved. To the present, recording of vital events is the town clerk's responsibility. After 1 July 1897, copies were sent to the State Department of Health.
For birth, marriage and death records:
Connecticut Department of Health - Vital Records