What was the First Club? To some extent, it depends on what you mean by "club", since the earliest things which could conceivably be called SF clubs were science clubs whose members also liked SF.
In general, the evidence is spotty since everyone involved is now dead and fanzines were invented later. Probably the main controversy is the Scienceers vs. the Eastbay Club. The claim of the Eastbay Club is based on claims by its founder, Aubrey MacDermott. (See Aubrey MacDermott on the Origins of Fandom for details.) He holds, essentially, that his club was ignored by the New York-centric fan history Establishment. This is not implausible, but it remains that the evidence is entirely testimony of an interested party.
|SCC/ISA||early Spring, 1928||Discounted by most fanhistorians as being mostly a science club.|
|Eastbay Club||April 1928||Plausible candidate, but the main evidence is from an interested party: See Aubrey MacDermott on the Origins of Fandom|
|Scienceers||December 11, 1929||Since the Eastbay Club was unknown to fanhistorians, this has long been held to be the first.|
|Boys' Scientifiction Club||1930||Supposedly formed by Ackerman because he couldn't travel to the Eastbay Club|
|Ilford Science Literary Circle||October 1930||The first club in the UK|