| O'Bryan; John (Chapel Hill, NC) | O'Bryan; Kurt (Wales, WI) | O'Bryan; Mark D. (Clinton Township, MI) | O'Bryan; Nelson B. (Woodbury, MN) |
| O'Bryan; Nelson B. (Maplewood, MN) | O'Bryan; Nelson B. (Tamworth, NH) | O'Bryan; Sean Joseph (Abbotsford, NSW 2046, AU) | O'Bryan; Susan S. (Marietta, GA) |
| O'Bryan; Timothy S (Sterling Heights, MI) | O'Bryan; Timothy S. (Sterling Heights, MI) | O'Bryan; William R. (Bennington, VT) | O'Bryant; David W. (Sandy, UT) |
| O'Bryant; Deborah L. (Gig Harbor, WA) | O'Bryant; Greg (Madison, AL) | O'Bryant; Jeff C. (Gig Harbor, WA) | O'Bryant; Jeffrey Charles (Des Moines, WA) |
| O'Bryant; John V. (Cincinnati, OH) | O'Bryant; Richard (Richardson, TX) | O'Bryon; Philip J. (West Salem, OH) | O'Burill; Alain (Saint Germain Au Mont d'Or, FR) |
| O'Byrn; Janice M. (New Smyrna Beach, FL) | O'Byrne; Daniel (Apex, NC) | O'Byrne; Elizabeth (Millburn, NJ) | O'Byrne; Jack (Fareham, GB) |
| O'Byrne; John W. (Sunshot, NM) | O'Byrne; Kilian (Cambridge, GB) | O'Byrne; Marietta (Eugene, OR) | O'Byrne; Nicola (Carrigaline, IE) |
| O'Byrne; Nicola (Ringaskiddy, IE) | O'Byrne; Nicola M. (Cork, IE) | O'Byrne; Nicola Mary (Ringaskiddy, IE) | O'Byrne; Paul (Dublin, IE) |
| O'Byrne; Seamus (Valley Monkstown, County Dublin, IE) | O'Byrne; Seamus (Monkstown, IE) | O'Byrne; Susan (Napa, CA) | O'Byrne; Timothy (Consort, Alberta, CA) |
| O'Byrne; Timothy Patrick (Picture Butte, Alberta, CA) | O'Byrne; Vincent (Boston, MA) | O'Byrne; Vincent A. (Brighton, MA) | O'Byrne; Vincent A. (Boston, MA) |
| O'Byrne; Vincent James (Surrey, GB) | O'Cadiz Castaneda; Rene A. (Mexico, 6 D.F., MX) | O'Callaghan Castella; Juan Manuel (Barcelona, ES) | O'Callaghan, deceased; Michael P. (late of Staten Island, NY) |
| O'Callaghan, Sr.; John S. (Wilmette, IL) | O'Callaghan; Aindrais (Fort Lauderdale, FL) | O'Callaghan; Andrais (San Francisco, CA) | O'Callaghan; Brendan (Bray, IE) |
| O'Callaghan; Christopher A. (Pasadena, CA) | O'Callaghan; Christopher P. (San Rafael, CA) | O'Callaghan; Cynthia H. (Gerrards Cross, GB2) | O'Callaghan; Daniel (Limerick, IE) |
| O'Callaghan; Daniel (Fairfax Station, VA) | O'Callaghan; Daniel J. (Reston, VA) | O'Callaghan; Dennis J. (Shreveport, LA) | O'Callaghan; Desmond (Virum, DK) |
| O'Callaghan; Donal J. (County Cork, IE) | O'Callaghan; Edmond (Kilworth, IE) | O'Callaghan; Fergus G. (Eindhoven, NL) | O'Callaghan; Fred G. (Mission Viejo, CA) |
| O'Callaghan; Gary L. (Dickinson, TX) | O'Callaghan; James (New York, NY) | O'Callaghan; James Joseph (Dundalk, IE) | O'Callaghan; James L. (Salt Lake City, UT) |
| O'Callaghan; James S. (Gilford, NH) | O'Callaghan; James S. (Meredith, NH) | O'Callaghan; Jeremiah J. (Enfield, CT) | O'Callaghan; John (Skokie, IL) |
| O'Callaghan; John (Kemsing, GB) | O'Callaghan; John (Buchanan County, MO) | O'Callaghan; John (Willmette, IL) | O'Callaghan; John (Mallow, IE) |
| O'Callaghan; John Mark (Kent, GB) | O'Callaghan; John S. (Skokie, IL) | O'Callaghan; John S. (Wilmette, IL) | O'Callaghan; John S. (Willmette, IL) |
| O'Callaghan; Joseph (Glounthaune, IE) | O'Callaghan; Kevin J. (Waterloo, CA) | O'Callaghan; Kevin Jude (Algonquin, IL) | O'Callaghan; Kevin Jude (Kingsport, TN) |
| O'Callaghan; Larry John (Inglewood, AU) | O'Callaghan; Liadan (Mountain View, CA) | O'Callaghan; Michael (Weston-Super-Mare, GB) | O'Callaghan; Michael G. (Erie, PA) |
| O'Callaghan; Michael J. (Louisville, CO) | O'Callaghan; Nicholas (Browns Plains, AU) | O'Callaghan; Patrick (Baldock, GB) | O'Callaghan; Patrick J. (Rockford, IL) |
| O'Callaghan; Pauric (Killybegs, IE) | O'Callaghan; Richard J. (Slidell, LA) | O'Callaghan; Sorcha (Dublin, IE) | O'Callaghan; Sorcha (Lucan, IE) |
| O'Callaghan; Wendy (Aurora, CA) | O'Callaghan; Wilfred B. (Kingston, CA) | O'Callaghan; Wilfrid B. (Kingston, CA) | O'Callaghan; Wilfrid B. (Kingston, Ontario, CA) |
| O'Callaghan; William (Gerrards Cross, GB) | O'Callaghan; William P. (Gerrards Cross, GB2) | O'Callahan; Dennis M. (Evanston, IL) | O'Callahan; Robert W. (White Plains, NY) |
| O'Camb; Thomas E. (Erie, PA) | O'Campo; Douglas F. (Bellerose, NY) | O'Canna; Theodore P. (Versailles, KY) | O'Carrol; Anthony P (Shropshire, GB) |
| O'Carroll, Jr.; Gerald F. (Snellville, GA) | O'Carroll; Colm D. (Edmonton, CA) | O'Carroll; Conor Patrick (Sunnyvale, CA) | O'Carroll; Conor Patrick (Sunneyvale, CA) |
| O'Carroll; Donal (Greystones, IE) | O'Carroll; Donal (Greystones, IR) | O'Carroll; Edmund Anthony (Cork, IE) | O'Carroll; Finbarr Michael (Ocean Ridge, FL) |
| O'Carroll; Garrett (Dublin 16, IE) | O'Carroll; Gerard (Castlebaldwin, IE) | O'Carroll; James G. (Mill Valley, CA) | O'Carroll; James G. (Emeryville, CA) |
| O'Carroll; Lisa A. (Oceanside, CA) | O'Carroll; Lynda C. (Edmonton, CA) | O'Carroll; Philip (Dublin, IE) | O'Carroll; Thomas (Creagh, IE) |
| O'Carroll; Thomas (Cypress, TX) | O'Carroll; Thomas (Ballinasloe, IE) | O'Carroll; Ultan (Tipperary, IE) | O'Ceallaigh; Ronan D. (Ennis, IE) |
| O'Chat; David P. (Morgan, NJ) | O'Chee; Milton (Denistone, AU) | O'Chee; Milton (Sydney, AU) | O'Cheskey; Theodore H. (Whittier, CA) |
| O'Cinneide; Breanndan (Celbridge, IE) | O'Clair; Brian (Foster City, CA) | O'Clair; Brian (New York, NY) | O'Clair; Charles T. (Waterford, NY) |
| O'Clair; Charles T. (Schenectady, NY) | O'Clair; Charles Thomas (Waterford, NY) | O'Clair; Chester R. (Latham, NY) | O'Clair; Mark (Clinton, MD) |
| O'Clair; Sean (Feeding Hills, MA) | O'Clock, Jr.; George D. (Madison Lake, MN) | O'Clock; George D. (North Mankato, MN) | O'Clock; George D. (Mankato, MN) |
| O'Coimin; David (Bristol, GB) | O'Coin; Bernard J. (Burlington, CA) | O'Coin; Bernard J. (Oakville, Ontario, CA) | O'Coin; Bernard J. (Oakville, CA) |
| O'Coin; Bernard Joseph (Oakville, CA) | O'Coin; James R. (Somers, CT) | O'Coin; James R. (Windsor Locks, CT) | O'Con; Kelly L. (St. Louis, MO) |
| O'Conell; James P. (Solana Beach, CA) | O'Conke; James R. (Cleveland, OH) | O'Connel; Brian M. (Cary, NC) | O'Connell (Agoura, CA) |
| O'Connell Cooper; Sheila (Chicago, IL) | O'Connell Cooper; Sheila (Addison, IL) | O'Connell Litteral; Mary (Kokoma, IN) | O'Connell, deceased; Robert M. (late of Belle Mead, NJ) |
| O'Connell, deceased; Stephen R. (late of Cadyville, NY) | O'Connell, executor; Patrick M. (Cadyville, NY) | O'Connell, II; Patrick F. (San Jose, CA) | O'Connell, III; Thomas J. (Quincy, MA) |
| O'Connell, Jr.; Charles (Mendon, MA) | O'Connell, Jr.; Conleth S. (Austin, TX) | O'Connell, Jr.; John J. (Red Creek, NY) | O'Connell, Sr.; Harold (South Hadley, MA) |
| O'Connell, Sr.; Raymond (Port Hueneme, CA) | O'Connell-Rodwall; Caitlin E. (Menlo Park, CA) | O'Connell-Rodwell; Caitlin (Stanford, CA) | O'Connell-Rodwell; Caitlin E. (Menlo Park, CA) |
| O'Connell; Alan (Babylon, NY) | O'Connell; Alan (Offaly, IE) | O'Connell; Andrew Mark (London W12 9EG, GB) | O'Connell; Ann (Weybridge, GB) |
| O'Connell; Ann (West Islip, NY) | O'Connell; Anne (Dublin, IE) | O'Connell; Anne (Castleknock, Dublin, IE) | O'Connell; Anne (Castleknock, IE) |
| O'Connell; Anne (Galway, IE) | O'Connell; Anne G. (Dublin, IE) | O'Connell; Anne G. (Cork, IE) | O'Connell; Barry (Palo Alto, CA) |
| O'Connell; Barry G. (Geneva, OH) | O'Connell; Betty (Toledo, OH) | O'Connell; Bonnie (Old Bethpage, NY) | O'Connell; Brian (Co. Dublin, IE) |
| O'Connell; Brian (Dublin, IE) | O'Connell; Brian C. (Dublin, IE) | O'Connell; Brian M (Cary, NC) | O'Connell; Brian M. (Cary, NC) |
| O'Connell; Brian Marshall (Cary, NC) | O'Connell; Cavan J. (Christchurch, NZ) | O'Connell; Cavan John (Christchurch, NZ) | O'Connell; Charles J. (Warrenton, VA) |
| O'Connell; Ciaran Anthony (Dublin, IE) | O'Connell; Colin (Pinehurst, NC) | O'Connell; Colman B. (Inman, SC) | O'Connell; Colman Barrett (Inman, SC) |
| O'Connell; Conleth (Austin, TX) | O'Connell; Conleth S. (Austin, TX) | O'Connell; Cormac (Kanata, CA) | O'Connell; Cormac (Eindhoven, NL) |
