Date |
Convention |
Size |
Location |
Notes
|
1936
|
October 22, 1936 |
First Convention |
12–18 |
Philadelphia, PA |
later called the First Eastern
|
1937
|
January 3, 1937 |
Other First Convention |
~20 |
Leeds, UK |
|
February 21, 1937 |
Second Eastern |
30–40 |
New York, NY |
|
October 30, 1937 |
Third Eastern |
~30 |
Philadelphia, PA |
|
1938
|
April 10, 1937 |
Second British Convention |
43 |
London, UK |
called Necronomicon in '57
|
May 29, 1938 |
Newark Convention |
>100 |
Newark, NJ |
aka Fourth Eastern aka First National
|
October 16, 1938 |
1938 Philadelphia Conference |
> 25 |
Philadelphia, PA |
|
1939
|
May 21, 1939 |
Third British Convention |
~40 |
London, UK |
|
July 2–4, 1939 |
NyCon |
150–200 |
New York, NY |
the first Worldcon
|
Fall 1939 |
Philcon 1939 |
|
Philadelphia, PA |
|
Early June 1939 |
OSA Pow-Wow |
3 |
Tulsa, OK |
Oklahoma state convention
|
1940
|
Early 1940 |
Washington Confabulation 1 |
3 |
Washington, DC |
|
April 1940 |
Third Chicago Conference |
4 |
Bloomington, IL |
|
September 1–2, 1940 |
Chicon |
128 |
Chicago, IL |
|
November 10, 1940 |
Phillycon 1940 |
|
Philadelphia, PA |
|
December 6, 1940 |
First Sydney Conference |
10 |
Sydney, NSW |
|
1941
|
Late February 1941 |
Boskone I |
~25 |
Winchester, MA |
at the Swishers’ home
|
April 6, 1941 |
Second Sydney Conference |
~12 |
Sydney, NSW |
|
May 4, 1941 |
All-Eastern Science Fiction Conference |
|
Newark, NJ |
May not have been held
|
Summer 1941 |
Washington Confabulation 2 |
6? |
Washington, DC |
issued Washington Manifesto
|
July 4–6, 1941 |
Denvention |
~100 |
Denver, CO |
|
September 20–21, 1941 |
Bombcon |
13 |
London, UK |
|
November 16, 1941 |
1941 Michiconference |
|
Jackson, MI |
|
1942
|
January 1942 |
PhilCo 1942 |
|
Philadelphia, PA |
Belatedly announced, called off in favor of Boskone II
|
January 4, 1942 |
Third Sydney Conference |
8 |
Sydney, NSW |
|
February 22, 1942 |
Boskone II |
25 |
Boston, MA |
|
September 27, 1942 |
1942 Michiconference |
~25 |
Jackson, MI |
|
November 22, 1942 |
Bloomington Conference |
9 |
Bloomington, IL |
possibly a poker game
|
November 29, 1942 |
Hastings S-F Conference |
v. small |
Hastings, MN |
possibly a drinking party
|
Late 1942 |
Pacificon Jr. |
|
Los Angeles, CA |
|
1943
|
February 28, 1943 |
Boskone III |
14 |
Boston, MA |
|
Spring 1943 |
Live Oak Conference |
3 |
Live Oak, FL |
A Cosmic Circle event
|
April 23–26, 1943 |
Midvention |
14 |
Leicester, UK |
i. e. over Easter
|
April 26–27, 1943 |
Midgicon ("Midget Chicon") |
8 |
Chicago, IL |
Al Ashley et al. on book buying spree, moots Slan Center
|
May 16, 1943 |
Staplecon 1 |
~12 |
San Francisco, CA |
|
June 26/28–July 1, 1943 |
Mainecon or Maine Stf Conference |
3 |
Rockland, ME |
Art Widner, Russ Chauvenet bike to Norm Stanley’s
|
Early July 1943 |
Mainecon, Jr. |
2 |
Rockland, ME |
visit by Claude Degler
|
Mid-1943 |
Schenectacon |
2-4 |
Schenectady, NY |
|
October 30, 1943 |
1943 Michiconference |
22 |
Battle Creek, MI |
|
November 21, 1943 |
Staplecon 2 |
|
San Francisco, CA |
|
"Around the end" of 1943 |
Fancon |
|
Bloomington, IL |
|
Late 1943? |
Councilcon |
|
Newcastle, IN |
Possibly occurred only in Claude Degler’s imagination
|
December 31, 1943–January 2, 1944 |
Norcon |
8 |
Manchester, UK |
|
1944
|
April 8–9, 1944 |
Eastercon |
|
London, UK |
|
May 28, 1944 |
Staplecon 3 |
9 |
San Francisco, CA |
|
June 17–19, 1944 |
Michicon 4 |
23 |
Battle Creek, MI |
|
August 27, 1944 |
Dovention |
11 |
Dover, NJ |
|
September 1–2, 1944 |
Midventionette |
6 |
Leicester, UK |
effectively Midvention 2
|
October 7–9, 1944 |
Little Chicon |
"small" |
Chicago, IL |
|
1944 |
Bufflocon |
|
Buffalo, NY |
Slan Shack visiting Ken Krueger
|
December 29–31, 1944 |
Norcon II |
14–19 |
Leeds, UK |
|
1945
|
February 3–4, 1945 |
Boskone IV |
5 |
Winchester, MA |
at the Swishers’ home
|
July 7–8, 1945 |
1945 Michiconference |
15-20 |
Battle Creek, MI |
|
September 2, 1945 |
Boskone V |
9 |
Salem, MA |
AKA First New England SF Conference
|
1946
|
March 3, 1946 |
FPWESFC |
|
Newark, NJ |
|
April 6–7, 1946 |
First Post-Radar-Contact-with-the-Moon Con |
16 |
Chicago, IL |
|
July 4–7, 1946 |
Pacificon |
130 |
Los Angeles, CA |
|
October 12–13, 1946 |
Centracon |
25 |
Chicago, IL |
|
October 27, 1946 |
Phillycon 1946 |
|
Philadelphia, PA |
|