The National Childbirth Trust, Europe's largest parents' charity, has been celebrating its 50th anniversary this year. Margaret and Glyn Thomas, now in their 80s, started a family when childbirth was a very different experience for mothers and fathers.
Here they remember the snowy day in February 1947 when their daughter Bronwen was born.
Audio slideshow produced by Alison Trowsdale, Hanna White and Christine Jeavans. Pictures by Phil Coomes. Family photos, courtesy Margaret and Glyn Thomas