Ritchie, William J. · Bonnybridge · worked 1930–1950
Ritter, Alvis · worked 1965
Ritter, Franz Richard · b. 1857
Ritter, Friedrich Christian · b. 1893
Ritter, Hermann · Wurzburg · 1849–1926
Ritter, Paul (I) · b. 1867
Ritter, Paul (II) · 1896–1946
Rittig, Cristoforo · worked 1675–1692
Riva, Severino · 1875–1917
Rives, Harry Dale · b. 1891
Rivitta, Antonio · worked 1840
Rivolta, Giacomo · Milan · 1780–1850
Rizzao, Antonio · worked 1948
Rizzotti, Nicola · worked 1880
Robb, Thomas · worked 1879
Robelus, Jules Florentin · b. 1920
Robert · worked 1820
Roberts, A. J. · b. 1873
Roberts, Alexander. · b. 1873
Roberts, Allen Neubold · 1866–1929
Roberts, Joe L. · 1896–1986
Roberts, John · worked 1690
Roberts, Lewis · Morriston · 1868–1917
Roberts, Raymond · d. 1984
Robertson, George · worked 1906
Robertson, J. H. · worked 1910
Robertson, James · worked 1880
Robertson, John · 1842–1920
Robin, John M. · 1918–1985
Robin, Marcel Pierre · 1880–1934
Robins, Francis · d. 1890
Robinson, Alfred George · b. 1879
Robinson, John · worked 1780
Robinson, O. M. · Penn Yan · b. 1838
Robinson, Robert · Portland · b. 1851
Robinson, Stanley · Plumstead
Robinson, William · London, Plumstead · b. 1882
Robinson, William Joseph · London · 1880–1960
Rocca, Enrico · Genoa · 1847–1915
Rocca, Giuseppe · Turin · d. 1865
Rocchi, Sesto · Milan, San Polo D'enza · 1909–1991
Roccus, P. · worked 1680–1702
Rockwell, David Bailey · Boston, New York
Rockwell, Edgar G. · b. 1883
Rockwell, Harry Victor · 1878–1951
Rockwell, Joseph H. · 1847–1930
Rockwell, N. · South Gardiner Maine
