Charlie Krueger was born and raised in Caldwell, Texas, the second oldest of eight children. His family was poor; all the boys helped out in their father's mattress factory business. When he was 12, Kruger started playing football at halfback, but he soon grew in size to be more fit as a lineman. As a sophomore at Caldwell High School, he weighed 190 pounds and was 6 feet 2 inches tall.[1] He received college football offers from Texas A&M, Rice, and Texas, and after being convinced by new Aggies head coach Bear Bryant, decided to play for Texas A&M.[2]
His younger brother, Rolf Krueger, also played college football at Texas A&M and in the NFL.[2]
Krueger was inducted into the Texas A&M Athletics Hall of Fame in 1972 and the College Football Hall of Fame in 1983.[4] He was also included in the SWC 50-year team which covered the 1919–68 seasons.[1]
Krueger wore number 70 and his number was retired by the 49ers.[7] Nicknamed the "Textbook Tackle,"[4] his defensive teammates included Pro Football Hall of Fame members Dave Wilcox at linebacker and Jimmy Johnson at cornerback. He was one of the last linemen in the NFL to wear a two-bar "quarterback" facemask. His brother Rolf (b.1946) was also an NFL player with the St. Louis Cardinals and the 49ers, where the two played together in 1972 and 1973.[8]
At age 51 in 1988, Krueger was awarded more than $2.3 million in damages stemming from a lawsuit against the San Francisco 49ers. The judge found that Krueger received repeated anesthetic injections during his NFL career so that he could continue to play in spite of significant knee injuries. The decision found that the 49ers were not truthful with Krueger regarding the seriousness of his injuries, which left him with severe chronic pain after his playing days.[5][9]
From 1960 to his death, Krueger lived in Clayton, California where he was involved with charitable organizations. He suffered health problems in his later years that prevented him from enjoying the outdoors.[2] In 2014, he was inducted into the Texas Sports Hall of Fame.[1]
He died at the age of 84 on February 5, 2021, following heart and kidney failure, eight days after his birthday.[10] He was survived by his wife of 48 years, Kristin Adler Krueger.[10]