Oates, Johnny, 58; baseball manager who guided Texas Rangers to three play-off berths; Dec. 24, 2004, from a brain tumor.
Obledo, Mario, 78; Hispanic rights leader born in San Antonio, earned law degree at St. Mary’s University, co-founded the Mexican Amercian Legal Defense Fund, awarded Presidential Medal of Freedom in 1998; in Sacremento, Calif., Aug. 18, 2010.
O’Connor, Maconda Brown, 82; philanthropist and social worker with juvenile delinquents, daughter of wealthy Houston businessman George R. Brown of Brown & Root; in Houston, May 19, 2012.
O’Connor, Tom Jr., 81; prominent South Texas rancher, oilman and banker; in Victoria, Aug. 7, 1996.
Madalyn Murray O'Hair.
O’Hair, Madalyn Murray, 76; famed atheist; long-time Austin resident; her body and those of her son and granddaughter were found in Real County, March 15, 2001.
Oliphant, Benjamin, 83; Methodist bishop of Houston area 1984 to 1992, supported civil rights struggle in 1950s and ’60s as pastor in Louisiana, encouraged women in ministry; in Houston, July 7, 2007.
Oliphant, T. G., 83; pastored four West Texas churches over half a century and founded the NAACP in Taylor County; in Abilene, June 20, 1998.
Olson, Barbara Bracher, 45; Houston native and national conservative political commentator, wife of U.S. solicitor general; killed at the Pentagon in the Sept. 11, 2001, terrorist attacks.
Olson, Lyndon L. Sr., 80; son of Swedish immigrants and Waco attorney who represented Midland in the 1968 U.S. Supreme Court case establishing proportional representation in local government districts; in Waco, Dec. 20, 2005.
Onstead, Robert, 73; Houston businessman raised in Ennis, co-founder and longtime president of Randalls Food Markets, which grew to 114 stores in the late 1990s; Aug. 4, 2004.
Ontiveros, Lupe, 69; El Paso native was character actress, played murderous fan in 1997Selena, also other film and TV roles including Desperate Housewives, Texas Woman’s University grad; in Whittier. Calif., July 26, 2012.
O’Quinn, John, 68; flamboyant Houston lawyer who won billions in cases involving breast implants, tobacco and pharmaceuticals; in Houston, Oct. 29, 2009.
Osteen, John, 77; founding pastor of one of Houston’s largest churches and a popular television evangelist; in Houston, Jan. 23, 1999.
Overcash, Clifton Sr., 75; businessman and former Fort Worth mayor; in Fort Worth, Jan. 5, 1997.
Overcash, Reece A. Jr., 68; Dallas business and civic leader; in Dallas, Jan. 17, 1995.
Overton, Volma, 81; civil rights leader who in the 1960s led efforts through sit-ins and picket lines for public accommodations and in 1970 to desegregate Austin public schools; in Austin, Oct. 31, 2005.
Owens, Buck, 76; founder of the Bakersfield Sound, his country hits included “Act Naturally” and “Waitin’ in Your Welfare Line”; co-host of TV’s Hee Haw; was born on a farm outside Sherman; in Bakersfield, Calif., March 25, 2006.