Tony Blackburn (back left) was the first voice on-air as BBC Radio 1 launched at 0700 on Saturday, 30 September 1967.
Radio 1 poached some DJs who had starred on "pirate" stations based off the British coast, such as Johnnie Walker.
John Peel became renowned as a champion of new music, regularly featuring acts which were not heard elsewhere.
Among the early presenters was Michael Aspel, who hosted a Sunday morning show, Family Favourites, on Radios 1 and 2.
Annie Nightingale was the first female Radio 1 DJ, joining in 1969, and is now the station's longest-serving broadcaster.
DJs celebrated Radio 1's 10th birthday in 1977 with another group picture outside the church beside Broadcasting House.
"The happy sound" of Radio 1 always included interviews with the big stars of the day, such as Eurovision winners Abba.
Presenter David Jensen was joined by Michael Jackson and George Harrison for an edition of reviews show Roundtable.
The DJs' Christmas party became a regular festive feature, with presenters being heard together every Christmas Day.
Annie Nightingale (back left) and John Peel (front right) joined newer recruits on the 25th anniversary of Radio 1 in 1992.
But a new regime in 1993 led to the departures of many long-serving DJs, with Dave Lee Travis effectively resigning on-air.