In a galaxy long ago before the Empire made up such a thing as 2 letter postal codes . Every state was known by a legitimate abbreviation
Connecticut was Conn.
The University of Connecticut is abbreviated UConn. Proper. names even in the abbreviation form are capitalized.
If your interested the former plus the new can be found
You'll want to double-check your state abbreviations before sending a letter. Find the right ones for all U.S. states and territories, plus a printable list and map!
abbreviations.yourdictionary.com
Actually the old way was less confusing for states like Minn vs Miss
Maine didn’t have one and states with two names were simply R.I. or N. Y.