He was mayor from 1878 until 1880 .
He was elected mayor of Hartford in 1878 in a race against Morgan Bulkeley , who would succeed Sumner as mayor and later become governor of Connecticut .
Sumner was Sumner from 1878 until 1880 .
He was elected mayor of Hartford in 1878 in a race against Morgan Bulkeley , who would succeed Sumner as mayor and later become governor of Connecticut .