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
Ostrander, Carl Thomas · Seattle · b. 1883
Ostrander, Eugene · Oriskany Falls · 1849–1927
Ostrizek, Anton · Vienna · worked 1928–1937
Ostroy, Joseph · Zegestov · b. 1897
Otho, Karl August · Leipzig · 1836–1892
Ott, Andreas · Fussen · b. 1611
Ott, Johann · Fussen · 1674–1736
Ott, Joseph · Dlouha Ves · worked 1850
Ott, Martino · Fussen · b. 1624
Ottley, Jacob · Bristol · worked 1800
Otto, August Adolf · 1865–1904
Otto, Bernhard August · Markneukirchen · b. 1882
Otto, Carl August · Jena · 1801–1883
Otto, Carl Christian · Weimar · 1792–1853
Otto, Carl Wilhelm Friedrich · Jena · 1808–1884
Otto, Carl Gustav · Markneukirchen · b. 1857
Otto, Ernst Albin · Markneukirchen · 1863–1917
Otto, Ernst Louis Georg · Dusseldorf
Otto, Georg August Gottfried · Weimar · 1789–1857
