- American Council for Judaism2
- American Humane Association3
- American Medical Association1
- American Society for the Prevention of Cruelty to Animals17
- Animal Defence and Anti-Vivisection Society4
- Animal Welfare Institute4
- Aristotle1
- Bergh, Henry, 1811-18881
- Culture and Animals Foundation1
- Descartes, Rene, 1596-16501
- Gandhi, Mahatma, 1869-19482
- Humane Slaughter Association1
- Kant, Immanuel, 1724-18041
- Moore, G. E. (George Edward), 1873-19581
- Narveson, Jan, 1936-1
- New York Zoological Park1
- Order of the Golden Age1
- Paddison, R. O. P.1
- Regan, Tom4
- Remington Arms Company1