My first form-group at Secondary School had, IIRC, actually 23 people in it; and one pair of people who shared a birthday.
One of those people was me; the other was a young woman called Charlotte, although I can't even remember what her surname is. IIRC she eventually left the school to go to the Sixth Form College, and I didn't see her again after that.
But still, despite never having really known her, I wish her a Happy Birthday on this day.