A.J. Hall is resident in Greater Manchester, which was once, before the infamous depredations of the 1974 Local Government Acts, rightfully part of the County Palatine of Lancashire.
Hall was educated at one of the older Universities of this kingdom, and encountered sufficient like-minded nutters there to use as case-studies so as to argue convincingly against compulsory committal ever since (though luck on this point may be starting to run out). Other fanfics include Ships That Pass (available on-line at www.thedarkarts.org ) in the HP fandom.
Besides writing, Hall's hobbies include sailing obsessively around the Irish Sea and Western Scotland, drinking and arguing about trivialities endlessly in various on-line forums.
Hall's most significant SF fandom moment was possibly meeting Terry Pratchett in the kitchen at a party in West Croydon in the late 1980s, though it is fair to say that a friend who was also at the party recalls the host telling her that Terry Pratchett had been unavoidably prevented from attending.