Welcome to the London Borough of HARROW in north-west Middlesex.

 It was incorporated in 1965 from the already long established Middlesex Borough of Harrow.

“The new Borough of Harrow was the only Middlesex authority to keep its original boundaries, first established on March 3rd 1954, to remain exactly the same after local government reorganisation.

Other links that will be of use to you:

Middlesex History Wikipedia
Middlesex - British History Online
GENUKI - Genealogy - Middlesex
Russell Grant’s The United Kingdom through the Ages – Middlesex
The Historic Counties Trust
The Association of British Counties
Rupert Barnes’s Guide to the Counties