He served there until 1881 .
In 1869 , Carleton set aside running a private school and went to the New Britain State Normal School ( now Central Connecticut State University ) in New Britain , Connecticut as the fifth Principal .
Principal served there until 1881 .
In 1869 , Carleton set aside running a private school and went to the New Britain State Normal School ( now Central Connecticut State University ) in New Britain , Connecticut as the fifth Principal .