House of Robert Johnson would start up the insurance company R B Johnson and Son. He would build a house for himself that was first at 208 Northampton Street and then after 1909 numbered to be 1425. He also ran the Holyoke Savings Bank. Both businesses were located at the Johnson Block at 201 High Street.
Charles W Johnson the son of Robert Johnson would take over the insurance company and the bank from his father.
Robert Johnson was best friends and colleague to George Prentiss. The Prentiss mills made all kinds of wire. George Prentiss would live next door to Robert Johnson and would have twin houses. The Prentiss was at first assigned the number address of 196 Northampton Street and then post-1909 the address of 1399 Northampton Street. Only the carriage house still exist.