How did you get the data to do this and how do you have the data from 1848 for Connecticut elections by town? That's pretty detailed!
Towns run elections in New England, so as long as the records are available, the town data should be, too. It's the equivalent of finding old county results in the rest of the country.
Not quite. The CT Secretary of the State has data going back only until 1922: I have earlier results because I am a student at the University of Connecticut. In the basement of the Homer Babbidge library there are original copies of election reports from at least 1848.
But no presidential primary results. 
How far back did Connecticut hold primaries? Most states didn't really start holding them until 1972, though some states have held them since the 1910s.
They didn't hold that many. They only started in 1980, but so far I've had no luck whatsoever in getting ahold of the results (other than statewide ones) for 1980-1996. If someone could help with this, I'm sure that Dave and I would appreciate it.
They did hold an interesting and very close caucus in 1976 as well, but I doubt anyone could find results for that.
