- Joseph Barondess (1867–1928) Jewish activist who helped form many labor unions and who played a leading role in the kosher meat boycott.
- David Blaustein (1866–1912) Superintendent of the Hebrew Educational Alliance who helped organize the Allied Conference for Cheap Kosher Meat.
- Isaac Blumenthal (1846–1906) President of the United Dressed Beef Company.
- Abraham Cahan (1860–1951) Editor of the socialist Forward who wrote frequently in support of the boycott.
- Sarah Zucker Cohn (1871–1955) Activist in the meat boycott and proprietress of New York’s first kosher cooperative retail butcher establishment.
- John C. Davies (1857–1925) New York State attorney general from 1899–1902 who investigated the Beef Trust for violations of state antitrust law.
- Sarah Zimmerman Edelson (1852–1931) Initiator of the meat strike whose efforts led to the establishment of the Ladies’ Anti–Beef Trust Association.
- Paulina Wachs Finkel (1868–1960) Early organizer of the meat boycott and treasurer of the Ladies’ Anti–Beef Trust Association.
- Joseph Goldman (1848–1927) President of the East Side Hebrew Retail Butchers’ Kosher Guarantee and Benevolent Association.
- Peter Stenger Grosscup (1852–1921) U.S. Court of Appeals judge who presided over United States v. Swift & Co. et al.
- William Travers Jerome (1859–1934) New York County district attorney, 1902–9.
- Frederick Joseph (1851–1931) Vice president of Schwarzschild & Sulzberger, a New York–based meat wholesaler, and son-in-law of its founder.
- Jacob Joseph (1840–1902) Chief rabbi of New York City, 1888–95.
- Philander C. Knox (1853–1921) Attorney general of the United States, 1901–4.
- Fanny Levy (1867–?) One of the early organizers of the meat boycott.
- John Nelson Partridge (1838–1920) Police commissioner of the City of New York, 1902–3.
- Adolph Moses Radin (1848–1909) Rabbi employed by the Hebrew Educational Alliance who was unsupportive of the boycott and insulting to its female organizers.
- Caroline Zeisler Schatzberg (1851–1928) Early activist in the meat boycott and president of the Ladies’ Anti–Beef Trust Association.
- Adolph Spiegel (1869–1957) Rabbi of Congregation Shaare Zedek, who helped negotiate an end to the meat boycott.
- Joseph L. Stern (1833–?) President of Joseph Stern & Sons, a New York–based meat wholesaler.
- Ferdinand Sulzberger (1854–1933) President of Schwarzschild & Sulzberger, a New York–based meat wholesaler.