Question: What 1948 Heisman Trophy winner and American football player played college football on the same team as quarterback Gilbert Johnson?

full_context: Document 1: Bob Johnson (outfielder): Robert Lee Johnson (November 26, 1905 – July 6, 1982), nicknamed "Indian Bob", was an American left fielder in Major League Baseball who played for three American League teams from 1933 to 1945, primarily the Philadelphia Athletics. He was the fifth player to have nine consecutive seasons of 20 or more home runs, and his 288 career HRs ranked eighth in major league history when he retired. Usually playing on inferior teams, he batted .300 five times, had eight seasons with 100 runs batted in, and finished his career among the AL's top five right-handed hitters in career RBI (1,283), runs (1,239), slugging average (.506), total bases (3501) and walks (1,075). He held the Athletics franchise record for career runs from 1942 to 1993. He also ranked among the AL leaders in games in left field (3rd, 1,592) and outfield putouts (10th, 4,003) and assists (8th, 208) when his career ended. His elder brother Roy was a major league outfielder from 1929 to 1938.
Document 2: Bill Johnson (center): William Levi Johnson, Sr. (September 14, 1926 – January 7, 2011), known as Bill "Tiger" Johnson, was a professional football player and coach. He was born in Tyler, Texas, where he was raised by his single mother and five older siblings. Among his siblings was older brother Gilbert Johnson, who played quarterback at Southern Methodist University with the iconic running back Doak Walker. Bill was a legendary football and baseball star for Tyler Junior College and Texas A&M University, and graduated from Stephen F. Austin State University. He played center for the San Francisco 49ers from 1948 to 1956.
Document 3: Bill Wyman (American football): William Henry "Bill" Wyman (December 14, 1951 - June 19, 2013) is a former American football player. He attended the University of Texas at Austin and played at the center position for the Texas Longhorns football team from 1971 to 1973. He was a consensus first-team selection to the 1973 College Football All-America Team. He has been called "the anchor of Darrell Royal's final Southwest Conference championship teams." He suffered from Parkinson's disease starting in approximately 1995 and died in June 2013.
Document 4: 1948 SMU Mustangs football team: The 1948 SMU Mustangs football team represented the SMU Mustangs of Southern Methodist University during the 1948 college football season. Doak Walker was a junior when he won the Heisman Trophy. Doak established several other Southwest Conference records that still stand.
Document 5: John Johnson (linebacker): John Vernard Johnson (born May 8, 1968) is a former American football linebacker who played five seasons in the National Football League with the San Francisco 49ers, Cincinnati Bengals and New Orleans Saints. He was drafted by the San Francisco 49ers in the second round of the 1991 NFL Draft. He played college football at Clemson University and attended LaGrange High School in LaGrange, Georgia.
Document 6: Scott Suber: Billie Scott Suber (born September 26, 1934) was an American football player. Suber was born and raised in Calhoun County, Mississippi (first in Derman and then in Calhoun City), where his father worked in a saw mill. He attended Mississippi State University and played college football at the guard position for the Mississippi State Bulldogs football team under head coach Darrell Royal. Suber was selected by the Newspaper Enterprise Association as a first-team player on its 1955 College Football All-America Team. After leaving Mississippi State, he served in the military and later had a career with what became Renesant Bank in Tupelo, Mississippi. He was inducted into the Mississippi Sports Hall of Fame in 1993.
Document 7: Albert Johnson (gridiron football): Albert Johnson III (born November 11, 1977 in Houston, Texas) is a Canadian Football League player for the Winnipeg Blue Bombers. Johnson played his college football for Southern Methodist University and then signed with the Saskatchewan Roughriders where he played three games in 1999. Johnson then signed with the Blue Bombers and went on to win the league's Rookie of the Year Award in 2000 after leading the league in return yardage. He signed with the Texans]] but suffered injuries throughout his National Football League stint. In 2006 Johnson returned to the Blue Bombers and once again led the CFL in return yardage and was second in combined yards to teammate Charles Roberts.
Document 8: Doak Walker: Ewell Doak Walker Jr. (January 1, 1927 – September 27, 1998) was an American football player. He played college football as a halfback at Southern Methodist University (SMU), where he won the Heisman Trophy in 1948. Walker then played professionally in the National Football League (NFL) with the Detroit Lions for six seasons, from 1950 to 1955.
Document 9: 1954 Mississippi State Maroons football team: The 1954 Mississippi State Maroons football team represented Mississippi State College during the 1954 college football season. This was the first season as head coach for Darrell Royal, who had previously served as an assistant for the Maroons. Royal would later win three national championships as head coach of Texas. Center Hal Easterwood was named to the FWAA/Look All-America team. Halfback Art Davis was named SEC "Player of the Year" by the Nashville Banner and Atlanta Constitution.
Document 10: Alan Ameche: Lino Dante "Alan" Ameche ( ; June 1, 1933 – August 8, 1988), nicknamed "The Iron Horse", or simply "The Horse", was an American football player who played six seasons with the Baltimore Colts in the National Football League (NFL). He played college football at the University of Wisconsin–Madison and won the Heisman Trophy during his senior season in 1954. Ameche was elected to the Pro Bowl in each of his first four seasons in the league. He is famous for scoring the winning touchdown in overtime in the 1958 NFL Championship Game against the New York Giants, labeled "The Greatest Game Ever Played."
Document 11: Zeke Smith: Roger Duane "Zeke" Smith (September 29, 1936 – July 22, 2016) was an American football player in the National Football League for the Baltimore Colts and the New York Giants. He played college football at Auburn University where he was awarded the Outland Trophy in 1958. His banner, along with four other Auburn greats - Bo Jackson, Pat Sullivan, Tracy Rocker and Carlos Rogers, is hanging outside Jordan–Hare Stadium in his honor. He was drafted in the fourth round of the 1959 NFL Draft.
Document 12: Derrick Henry: Derrick Henry (born July 17, 1994) is an American football running back for the Tennessee Titans of the National Football League (NFL). He played college football for the Alabama Crimson Tide, and was drafted in the second round of the 2016 NFL draft by the Titans. In December 2015, he broke Herschel Walker's single season college rushing yards record in the SEC. He won the 2015 Heisman Trophy, as well as the Doak Walker Award, the Maxwell Award, and the Walter Camp Award. Henry also holds the national high school football record for career rushing yards.
Document 13: Sam Johnson (wide receiver): Samuel Johnson (born September 7, 1964) is a former American football wide receiver who played one season with the Los Angeles Rams of the National Football League. He first enrolled at Los Angeles Southwest College before transferring to Prairie View A&M University. He attended South Gate High School in South Gate, California.
Document 14: Wayne Walker: Wayne Harrison Walker (September 30, 1936 – May 19, 2017) was an American professional football player and sports broadcaster. He played fifteen seasons with the Detroit Lions of the National Football League, as a linebacker and placekicker. Walker played in 200 regular season games, the second most for a defensive player at the time. He played in three Pro Bowls and was thrice selected as a first-team All-NFL player. After the 1972 season, he retired as a player and was a sports broadcaster for CBS and the sports director for KPIX-TV in San Francisco from 1974 to 1994. Walker was a weekend sportscaster during the off-season during his later years as a Detroit Lion.
Document 15: Jimmy Johnson (American football coach): James William Johnson (born July 16, 1943) is an American football broadcaster and former player, coach, and executive.
ground_truth: Doak Walker