Try this site, it has quite a few dates and squadrons and details.

http://www.fiddlersgreen.net/AC/aircraft/V1/info/info.php

Also this may be a good read as the chap had 52 1/2 confirmed V1 kills to his credit, again lots of dates and details.

http://www.hawkertempest.se/berry.htm

Regards,

John.