Mackenzie helped construct many courthouses and jails across southern Ontario. Many monuments went up in public places like parks, city halls, and courthouses. Sheriffs are also responsible for the security in all the county courthouses throughout the state. These are frequently located near the county courthouses. County courthouses in Alabama are listed here. County courthouses in Iowa are listed here. County courthouses in Arkansas are listed here. County courthouses in Georgia are listed here. County courthouses in Missouri are listed here. County courthouses in Washington are listed here. County courthouses in Minnesota are listed here. County and other courthouses in Nebraska are listed here. Federal courthouses in Mississippi are listed here. Federal courthouses in Kentucky are listed here. Federal courthouses in Oklahoma are listed here.