Merkin Valdez debuted on August 1, 2004, playing for the San Francisco Giants at SBC Park; he played his final game on September 25, 2011, playing for the Texas Rangers at Rangers Ballpark in Arlington.
Cesar Valdez debuted on May 3, 2010, playing for the Arizona Diamondbacks at Chase Field; he played his final game on June 10, 2010, playing for the Arizona Diamondbacks at Chase Field.
Efrain Valdez debuted on August 13, 1990, playing for the Cleveland Indians at Cleveland Stadium; he played his final game on July 10, 1998, playing for the Arizona Diamondbacks at Bank One Ballpark.
Ismael Valdez debuted on June 15, 1994, playing for the Los Angeles Dodgers at Dodger Stadium; he played his final game on October 1, 2005, playing for the Florida Marlins at Dolphin Stadium.
Sergio Valdez debuted on September 10, 1986, playing for the Montreal Expos at Stade Olympique; he played his final game on September 26, 1995, playing for the San Francisco Giants at Candlestick Park.
Jose Valdez debuted on April 17, 2011, playing for the Houston Astros at Minute Maid Park; he played his final game on October 3, 2012, playing for the Houston Astros at Minute Maid Park.
Mario Valdez debuted on June 15, 1997, playing for the Chicago White Sox at Comiskey Park II; he played his final game on June 22, 2001, playing for the Oakland Athletics at Oakland Coliseum.
Carlos Valdez debuted on July 18, 1995, playing for the San Francisco Giants at Candlestick Park; he played his final game on September 27, 1998, playing for the Boston Red Sox at Fenway Park II.
Julio Valdez debuted on September 2, 1980, playing for the Boston Red Sox at Fenway Park II; he played his final game on April 30, 1983, playing for the Boston Red Sox at Fenway Park II.
Rafael Valdez debuted on April 18, 1990, playing for the San Diego Padres at Jack Murphy Stadium; he played his final game on April 27, 1990, playing for the San Diego Padres at Jack Murphy Stadium.
Wilson Valdez debuted on September 7, 2004, playing for the Chicago White Sox at U.S. Cellular Field; he played his final game on October 3, 2012, playing for the Cincinnati Reds at Great American Ball Park.
Mario Valdez played in 12 games at designated hitter for the Oakland Athletics in 2001, starting in none of them. , equivalent to 0 errors per game (estimate based on total games played in).
Jose Valdez plays for the Detroit Tigers.