Background: Weldon Gaston "Hum" Humble (April 24, 1921 - April 14, 1998) was an American football guard who played five seasons in the All-America Football Conference (AAFC) and National Football League (NFL) for the Cleveland Browns and Dallas Texans in the late 1940s and early 1950s. Humble grew up in Texas and was a multi-sport athlete at Brackenridge High School in San Antonio. He enrolled at Rice University in Houston, Texas in 1940 and played three seasons on the school's football team. Humble then spent three years in the U.S. Marines during World War II, serving in the Pacific War and earning a Bronze Star Medal before returning to complete his college studies in 1946.
Context: Humble was born in Nixon, Texas, a suburb of San Antonio, in 1921. His athletic career began at San Antonio's Brackenridge High School. Humble played as an end for two seasons and a fullback for a third season on the football team. He also played on the basketball, track and swimming teams before graduating and enrolling at Rice University in Houston, Texas in 1940.  Humble began play on Rice's freshman team as an end in 1940. He advanced to the varsity team the next year. While he started as an end, coach Jess Neely switched him to guard before the first game of the season. He thrived in the new position, and was named a sophomore all-star by the Associated Press after the Rice Owls finished 1941 with a 6-3-1 win-loss-tie record. The following year, Humble earned All-Southwestern Conference honors and won the George Martin Award, given to Rice's most valuable player, as Rice put up a 7-2-1 record.  Humble left Rice in 1943 for the University of Louisiana at Lafayette, then called Southwestern Louisiana Institute, to prepare for service in World War II in a V-12 U.S. Navy training program. As he trained, he played alongside enlistees from Tulane University, the University of Tulsa and Louisiana State University on a military team that won six straight games and was selected to play in the first Oil Bowl in Houston. Captained by Humble, Southwestern beat a service team from Randolph Air Force Base in San Antonio.  After the season, Humble enlisted in the United States Marine Corps and was sent to fight in the Pacific War. He rose to the rank of first lieutenant and won a Bronze Star Medal. Upon his discharge in 1946, Humble returned to Rice. He lettered in football and track and field and was voted a consensus first-team All-American guard while captain of Rice's Southwestern Conference co-champion team. He was also named lineman of the week by the Associated Press in November for his strong tackling in a game against the Texas A&M Aggies. After finishing with an 8-2 record, Rice beat Tennessee in the Orange Bowl game in early 1947. Rice was ranked the 10th-best college team in the nation in the AP Poll.
Question: Did he play a certain position?

Answer:
lineman