A member from Denmark.
Best known for writing an extensive timeline aimed at the impossible - a successful Sealion - albeit with an early POD. It is titled :
Beyond that, he also wrote the (sadly unfinished):
Also known as “Briiiiiits iiiiin Spaaaaace!”. Thus TL featured, as one might expect, more British involvement in space. In 2007, it won a Turtledove Award for “Best Late 20th Century Timeline”.