Were "Whitfield Aerodrome" and "Dover Aerodrome" the same place or were they separate entities?
Harriet Quimby can be seen getting into her aircraft at this link:
http://www.harrietquimby.org/pages/englishchannel1912.html
She is referred to as travelling from Dover Aerodrome, not Whitfield so presumably the two names refer to the same site. However, wasn't there a RNAS station up near the later pylons?
There was a group of local civvies pre-WW1 called "Dover Aero Club" - maybe that'll throw up a clue?