Number of artists in each category in brackets
Argentina (1)
Australia (2)
Austria (23)
Austria Hungary (1)
Austria-Hungary (1)
Belarus (6)
Belgium (5)
Bulgaria (3)
Canada (1)
Colombia (1)
Czech Republic (2)
Czechoslovakia (9)
Czechoslovakia (now Czech Republic) (1)
Dominica (1)
Egypt (1)
England (136)
Estonia (2)
Ethiopia (1)
France (6)
Germany (68)
Holland (1)
Hungary (9)
India (3)
Iran (1)
Iraq (2)
Israel (13)
Italy (3)
Latvia (3)
Lithuania (3)
Mauritius (1)
Moldova (2)
Morocco (2)
Netherlands (6)
Nigeria (1)
Pakistan (1)
Poland (54)
Prussia (1)
Romania (9)
Russia (12)
Scotland (4)
Serbia (1)
Slovakia (2)
South Africa (6)
Spain (2)
Switzerland (1)
Turkey (3)
Ukraine (13)
unknown (11)
USA (20)
USSR (2)
Virgin Islands (1)