C

• [+] Companies established in 1931 (3)

E

• [+] Educational institutions established in 1931 (0)

M

• [+] Military units and formations established in 1931 (0)
• [+] Museums established in 1931 (0)
• [+] Musical groups established in 1931 (0)

R

• [+] Religious organizations established in 1931 (0)

S

• [+] Sports clubs established in 1931 (1)

A

• Afghanistan Scout Association
• American Institute of Physics
• American Society of Travel Agents
• Architects Registration Board

B

• British Colour Council

B cont.

• British Kinematograph, Sound and Television Society

C

• Central States Communication Association

I

• International Council for Science

J

• JAK members bank

L

• League for Social Reconstruction

R

• The Royal Ballet

R cont.

• Royal Numismatic Society of New Zealand

S

• Scottish Council for Development and Industry
• Scottish Youth Hostels Association
• Seaton House
• Songwriters Guild of America

T

• Turkish Historical Society