- American Anti-Vivisection Society1
- American Humane Association1
- American Humane Education Society4
- American Humanitarian League1
- Amos, Henry B.1
- Animal Defence and Anti-Vivisection Society10
- Animal Rescue League of Boston3
- Audubon Society of Rhode Island1
- Bayly, Maurice Beddow6
- Bell, Ernest3
- Berdoe, Edward, 1836-19161
- Bolton Anti-Vivisection Society1
- Bourchier, B. G., Rev.1
- British Union for the Abolition of Vivisection23
- Caird, Mona3
- Cash, James J.1
- Cather, J. Leonard2
- Chancellor, H. G.1
- Chapple, W. A.1
- Chase, J. Riley1