"Guard Row" is the area where employees of MSP and their dependents live. As of the 1970s "Guard Row", a nickname for the main road that bisects the prison, has identical wood frame houses, most of which had been built in the 1930s by the Work Projects Administration. Around 1971 the state charged employees a rent of 10 to 20 dollars (about $- adjusted for inflation) per month, a rate described by Donald Cabana, a former superintendent of MSP, as "nominal". The state provided housing for employees due to the isolation of MSP, and therefore the staff can quickly respond to emergencies such as inmate disturbances or escapes. As of the 1970s multiple generations of families lived and worked at MSP.