Authors: 1923
- Richmond, Cora L. V. (Cora Linn Victoria) 1840-1923
- Ridley, Annie E. 1839-1923
- Rinne, Kaarle F. (Kaarle Fredrik) 1863-1923
- Robert, Henry M. (Henry Martyn) 1837-1923
- Rognan, Lloyd 1923-2005
- Röhl, Hermann 1851-1923
- Root, A. I. (Amos Ives) 1839-1923
- Rosen, Erwin 1876-1923
- Rosenfeld, Morris 1862-1923
- Roslin-Kalliola, Matilda 1837-1923
- Royce, Charles C. 1845-1923
- Sabugosa, António Maria José de Melo César e Meneses, conde de 1854-1923
- Sarlin, Knut 1882-1923
- Schlitt, Heinrich 1849-1923
- Schoultz, Carl Johan 1849-1923
- Seccombe, Thomas 1866-1923
- Serrano, Mary J. (Mary Jane) -1923
- Shackleton, Robert 1860-1923
- Shaylor, Joseph 1844-1923
- Sidis, Boris 1867-1923
- Skrine, John Huntley 1848-1923
- Smith, John Talbot 1855-1923
- Soane, Ely Banister 1881-1923
- Södergran, Edith 1892-1923
- Solomons, Israel 1860-1923
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