At least according to the experts at Guinness World Records…
On Feb. 20, 1952, Carolyn Cummins of Richmond, Virginia, gave birth to her first baby, Catherine.
On Feb. 20, 1953, Carolyn Cummins gave birth to her second baby, Carol.
On Feb. 20, 1956, Carolyn Cummins gave birth to her third baby, Charles.
On Feb. 20, 1961, Carolyn Cummins gave birth to her fourth baby, Claudia.
On Feb. 20, 1966, Carolyn Cummins gave birth to her fifth baby, Cecilia