Similar occurrence: William Jordan and Martha (Meredith) had 5 children baptised on same day, 28 Oct 1978. Certainly weren't quintuplets! - and three of them were probably re-baptisms. Done prior to emigration to NZ. As Slowhands says, all a baptism record shows is that they were baptised on that date. Unless an age or date of birth is recorded, they could be of any age.