• Oakeley, Fred­er­ick
• Oakeley, Her­bert Stan­ley
• Oakes E. W.
• Oakey, Emi­ly Sul­li­van
• Oakley, Charles Ed­ward
• Oakley, Eb­en­ezer Sher­man
• Oakley, Will­iam Hen­ry
• Oates, George
• Oatman, John­son, Jr.
• Oatman, Mi­ri­am Eu­la­lie
• Oberholtzer, Sa­ra Lou­isa Vick­ers
• Oberlin, Jean-Fréd­ér­ic
• O’Cahan, Ro­ry Dall
• Occom, Sam­son
• O’Connor, John
• Odell, Si­las G.
• Odinga, H. Ger­des
• Odo of Clu­ny
• O’Do­no­ghue, Ma­ri­an
• Oeseph, T. K.
• Offord, Ro­bert Mar­shall
• Ogborn, C. H.
• Ogborn, W. N.
• Ogden, George
• Ogden, Ma­ri­an E.
• Ogden, Will­iam Au­gus­tine
• Ogdon, Ina Du­ley
• Ogilby, Fred­er­ick Dar­ley
• Ogilvie, John
• Ogle, J. Le­on­ard
• O’Hagan, John
• Ohl, Je­re­mi­ah Frank­lin
• Ojima, S.
• O’Kane, Ed­ward Thom­son
• O’Kane, Tul­li­us Clin­ton
• Ölander, An­na He­le­na
• Old Al­an Gray
• Old Ev­er­ton
• Old Fa­ther Thames
• Old Humph­rey
• Old Mer­ry
• Oldberg, Arne
• Oldenburg, Theo­dor Vil­helm
• Olearius, Jo­han­nes Gott­fried
• Oler, Ma­ry
• Olinger, J. H.
• Olinger, May
• Oliphant, Charles Hen­ry
• Oliva, Mi­guel
• Oliver, A. O.
• Oliver, El­len
• Oliver, French Earl
• Oliver, George Ed­gar
• Oliver, Grace Reed
• Oliver, Hen­ry Kem­ble
• Oliver, Mar­tha C.
• Oliver, Rich­ard J.
• Olivers, Tho­mas
• Olivier, Fran­çois
• Olmstead, Will­iam Bac­kus
• Olmsted, Eli­za M.
• Olsen, Mrs. Ren
• Olson, Ernst Will­iam
• Olsson, Ol­of
• Olude, Ab­ra­ham Tai­wo Ola­jide
• Onderdonk, Hen­ry Us­tick
• O’Neill, Tho­mas
• Onslow, Phipps
• Oooton, Lee Roy
• Opie, Am­el­ia Al­der­son
• Opitz, Mar­tin
• Orbin, George
• Orchard, Ed­win John
• Ordway, John Pond
• Orheim, Ma­ti­as
• Orr, Charles Ebert Orr
• Orr, James Ed­win
• Orr, Nim J.
• Orr, Ni­na J.
• Orr, P. P.
• Orr, Ro­bert Por­ter
• Orrock, J. M.
• Orsborn, Al­bert Will­iam Tho­mas
• Ortlip, Will­iam T.
• Ortlund, Eli­za­beth Anne Sweet
• Orwig, Aar­on Will­iams
• Orwig, P. S.
• Osback, C. R.
• Osborn, Kate
• Osborne, Charles
• Osborne, Eli­za­beth
• Osborne, Rich­ard
• Osborne, Stan­ley Llew­el­lyn
• Osgood, Fran­ces Sar­gent Locke
• Osgood, J. R.
• Osgood, Jo­si­ah
• Osgood, Ma­bel G.
• Osgood, May Ag­nes
• O’Sheridan, Ma­ry Grant
• Oskin, Lo­gan
• Osler, Ed­ward
• Oslin, Ste­phen Je­sse
• Osmond, Ha­rold Bart­rum
• Østergård, Kris­tian Pe­der­sen
• Ostrom, Hen­ry Eg­er­ton Fos­ter
• Oswald, Hein­rich Sieg­mund
• Ottander, Ot­to Al­fred
• Otte, Hel­en Ann Brink
• Ottman, Ford Cy­rin­da
• Ovens, Will­iam Gil­bert Jones
• Overby, Os­car Ru­dolph
• Overholt, John J.
• Overton, Charles Carl­ton
• Overton, C. D. Ov­er­ton
• Owen, Fran­ces Ma­ry Synge
• Owen, T. A.
• Owen, Will­iam
• Owen, William Moreton
• Owens, Car­ol
• Owens, James Lloyd
• Owens, Pris­cil­la Jane
• Oxenford, R. Ed­ward
• Oxenham, John
• Ozendorff, E. L.