I made a list of names that were most popular in each decade between 1900 and 2020 for boys and girls in the UK, so based on the 1940s-1960s lists, these are my favourites! 
GIRLS
Catherine, Christine, Diana, Diane, Elaine, Elizabeth, Geraldine, Helen, Jane, Julie, Pauline, Rosemary, Sally & Valerie
BOYS
David, Ivan, John, Patrick, Philip, Robert, Robin, Stephen & Vincent