Creator
- Roerich, Nicholas, 1874-19471
- Rogers, Pliny, 1882-19301
- Rose, Elihu, 1933-1
- Rouse & Goldstone1
- Rowland, John T., 1872?-19451
- Rutan and Russell1
- Sass & Springsteen1
- Schultze, Leonard, 1877-19511
- Schwartz & Gross1
- Shampan & Shampan1
- Shattuck and Hussey1
- Sloan & Robertson1
- Smith, Hinchman, and Grylls, inc.1
- Smith, Morrell1
- Snyder, C. B. J., 1860-19451
- Sommerfeld & Steckler1
- South Amboy Terra Cotta Co1
- St. Louis Terra Cotta Co1
- Stanley & Scheibel1
- Stearns & Castor1