[3] Carroll was signed by the Milwaukee Braves as an amateur free agent in 1961,[4] and made his major league debut at age 23 on September 2, 1964, hurling two shutout innings against the Cardinals.

[5] Carroll was acquired along with Tony Cloninger and Woody Woodward by the Reds from the Atlanta Braves for Milt Pappas, Bob Johnson and Ted Davidson on June 11, 1968.

[6] Nicknamed "Hawk" due to his profile likeness of the bird, he was selected to the National League All-Star team in 1971 and 1972.

He was traded by the Reds to the Chicago White Sox for Rich Hinton and minor league catcher Jeff Sovern on December 12, 1975.

[8] After going 4–4 with six saves and a 2.56 ERA in 29 appearances with the White Sox, he was dealt to the Cardinals for Lerrin LaGrow during spring training on March 23, 1977.

[9] Carroll and his ex-wife Judy are the parents of two daughters, Connie and Lori, along with a son, Brett (sometimes reported as Bret).