Aircraft Historical Movement Data

Hi guys - my 1st post in here & apologies but it's actually a plea for information or a pointer.
I'm in the UK and work as one of the guides on Concorde G-BOAC at Manchester Airport (it's only open to guided tours). We frequently get people on our tours who travelled on Concorde but can't remember which one.
So I've started a "little" project to document which Concorde did which flights. In total there were approximately 60,000 by the BA aircraft. I've currently got to 14,352 and am trying to delve wider. The majority of the data I have is from the excellent http://www.lhr-lgw.co.uk/ site - dedicated to LHR or LGW momvements.

My question is :-
Is there a similar site for JFK & Washington movements or does anyone know anyone who has this data ?
Concorde flew to Washington and JFK between 1976 & 2003.

Cheers

John

PS There are now guided tours available of G-BOAD at your excellent Intrepid museum in Ney York. A much better way of seeing Concorde than just a walk through.