The #1 song on June 30, 1957

Love Letters in the Sand By Pat Boone

Other #1 songs on June 30, 1957

UK #1 Song

Puttin' On the Style / Gamblin' Man
Lonnie Donegan

#1 R&B Song

Searchin'
The Coasters

#1 Country Song

A White Sport Coat (And A Pink Carnation)
Marty Robbins

Notable June 30 birthdays in the 1950s

Petra Felke
Javelin Thrower
Born June 30, 1959
Noella Marcellino
Biologist
Born June 30, 1951
Murray Cook
Pop Singer
Born June 30, 1960
David Alan Grier
Comedian
Born June 30, 1956
Hal Lindes
Composer
Born June 30, 1953
Lauren Susan Green
Journalist
Born June 30, 1958
Stephen Ouimette
Stage Actor
Born June 30, 1954