I think the problem is that Connecticut doesn't have death records that early. You'll find death records 1897-1965 at the Connecticut State Library, www.ctstatelibrary.org/death-records
The City of New Haven, www.cityofnewhaven.com/vitalstatistics/
has birth, marriage and death records but I couldn't the start dates on their web site.
You might find more info about each person by finding their death notice in the local newspaper. Successful Searching!