In 1946, he became the booker and then the director of the country music radio program
Hayloft Jamboree on WCOP (now
WWDJ) in
Boston,
Massachusetts. In the early 1960s, Mayhew began working at
Pickwick Records in
New York City. At Pickwick, he produced one of the first memorial recordings of President
John F. Kennedy after the President's death in 1963. He left Pickwick to start his own record label, Little Darlin', in 1966. The most successful Little Darlin' records were done by the country and western singer and songwriter
Johnny Paycheck. Mayhew co-wrote some of Paycheck's songs. At the end of the 1960s, he suspended the Little Darlin' label and launched a new label, Certron. The label was also home to recording star
Ronnie Dove, who was transferred there when his label
Diamond Records was sold. Although he recorded many songs for Certron, only one was ever released (on a
Greatest Hits album). Mayhew also owned Charlie Parker Records before selling the label in 1981. ==Collector of Kennedy memorabilia==