Opikhtin, A · Saint Petersburg
Opperdoes, Pieter · Amsterdam · 1684–1711
Orazio, di Giovanni Filippo · Rome
Orban, Imre · Budapest · b. 1898
Orelli, Josef · Rome
Orestad, Ivar · Bodo · 1883–1963
Orinthio, d’Essentier · Nancy
Orlandelli, Paolo · Cordogno
Orlandi, Ernesto · Cremona · b. 1929
Orlandi, Orlando · Ascoli Piceno · b. 1875
Orlandini, Archimede · Parma · 1909–2002
Orlecke, Heinrich Christian · Tangermunde · worked 1829
Orloff, Daniel · Wallace · b. 1922
Ornati, Giuseppe · Albairate, Milan · 1885–1965
Orr, George P. · Philadelphia
Orselli, Enrico · Ferrara, Pesaro · 1891–1955
Orselli, Giacomo · Rome · b. c.1793
Orselli, Giuseppe · Rome · b. c.1772
Orsi, Giovanni · Bassignana · b. 1915
Orsini, Ercole · Teramo · 1900–1943
Orsini, Gianni · Bologna · b. 1938
Orsoni, Olao · Bologna · b. c.1913
Ortega, Ascencio · Madrid · d. 1845
Ortega, Mariano · Madrid · worked 1820–1855
Ortega, Silverio · Madrid · worked 1770–1820
Orth, George O. · Seattle · 1885–1962
Orth, Louis · Pont a Mousson · worked 1870
Ortlieb, Friederich · Freiburg
Orto, Joseph · Budapest · b. 1886
Orton, Phillip · Hereford · worked 1845–1860
Ory · Paris · worked 1790–1814
Orzero, Tommasso · Turin · worked 1850
Osborne, C. E. · Rockford · worked 1912–1927
Osborne, Henry · Sherborne · worked 1860
Osborne, Samuel · Leamington Spa · worked 1890
Osch, E P van · Maastricht
Osgar, Michael P. · St. Cloud · b. 1899
Oskay, William Frederick · Oswego · 1918–1973
Osmond, William · Evesham · worked 1810–1835
Ostensson, Knut · Tranas · b. 1868
Osterberg, August · Gothenburg
Ostergren, Reinhold · Alvsjo · worked 1925
Osterholdt, Hugo · Iserlohn · worked 1908–1922
Ostermunchner, Andreas · Markneukirchen · worked 1720–1725
Ostertag, George A. · Augsburg, Chicago · worked 1890–1930
Ostler, Andreas · Wroclaw · worked 1730–1770
Ostler, Anton · Mittenwald · b. 1895
Ostler, Frantz · Vienna · d. 1729
Ostler, Matthias · Mittenwald
