Fox began his association with Badger Books (John Spencer & Co.) in early 1957 when he produced a handful of covers for the company's War and Supernatural titles; the work dried up after a year and it wasn't until mid-1960 that he became their main artist, producing over 200 covers for Badger before the company ceased publishing novels in mid-1967.
As far as I can tell, Fox began producing covers as early as 1952 when he worked for Arrow Books. By 1956 he was also being employed by Ward Lock and Pan, although throughout this period had also produced covers for the cheaper end of the market: Modern Fiction, Comyns and Alexander Moring. He also produced romance covers for Mills & Boon.
During the early 1960s, Fox also worked for the Amalgamated Press, producing covers for the Sexton Blake Library, 1961-62, and various war libraries, 1960-63 (and irregularly thereafter). In the late 1960s, post-Badger, he changed tack completely and began illustrating magazine stories, notably the 'Brer Rabbit' stories in Once Upon a Time and illustration for Treasure and Look and Learn.
Apart from his book covers and illustrations, very little is known about Fox. In the Artwork from the Pan Archive auction catalogue (Bonhams, 1991), the writer claimed that Fox was the pseudonym of one Henry Hall. Not true... and the only explanation I can think of is that at some point Fox worked for agent Maurice Hall and Hall's name appeared on the back of some artwork handled by Bonhams.
After a lot of digging I have discovered that Fox was a Fellow of the Royal Society of Art who lived in North London for most (if not all) of his working life, at 158 Alexandra Road, N.W.8 [fl.1948-59] and 27 Springfield Gardens, Barnet, N.W.9 [fl.1962-75].
I've not been able to trace him beyond 1975 and would love to know what happened to him. Henry Fox was a capable artist when working for the better paid markets although, for better or worse, he'll probably be remembered longest for his trashier work for Badger Books. At least that connection means his work has spread to the internet and any web site dedicated to Badger -- see the Pel Torro web site, for instance -- is almost a shrine to Henry Fox. The Look and Learn web site has a number of images of Fox's later illustrations from Treasure taken from original artwork.
UPDATE (12 November 2006)
Thanks to Claire Batley of the RSA, we have a little more info. on Fox. Fox was elected a fellow of the RSA on Friday 1 November 1940. The RSA Journal carried addresses for members from vol. 94 (1945-46) at which time Fox was already living at 158 Alexandra Road. His move to 27 Springfield Gardens was noted in vol. 111 (1962-63). In the list of fellows in vol. 119 (1970-71), Fox has become a life member of the RSA. And, finally, in vol. 125 (1978-79) it is noted that he has moved to 26 St Peter's Crescent, Bexhill-on-Sea, E. Sussex.
The next available members list is from 1981 and Fox's name has disappeared. So it would appear that Fox died some time between 1979-81.
Having narrowed down the field of search, I was able to check the death registers for that period and there are two Fox suspects who died in that period whose deaths are registered at Hastings & Rother (which seems to be the place where all deaths in East Sussex are registered): Henry Stanley Fox (b. 26 December 1899, d.
My thanks to Claire, who diligently dug through over 50 years worth of journals to bring you this breaking news. The fact that he's still maybe 1911-1980 is down to me to resolve.
Doctor Who and the Crusades. London, Frederick Muller, 1965.