Local Government reform in England in 1965 led to the appointment of lord-lieutenants to Greater London and Huntingdon and Peterborough , and the abolition of those of the County of London , Middlesex and Huntingdonshire . Local Government reform in England in 1965 led to the appointment of lieutenants to Greater London and Huntingdon and Peterborough , and the abolition of those of the County of London , Middlesex and Huntingdonshire .