What are Irish Twins? It’s the term given to babies in the same family that are less than 1 year apart in age. I myself have these.

Matthew, my eldest son, right now is almost 5 years old and Paul Jr. (fondly called PJ) is 4 years old. They are 9-1/2 months apart - crazy isn’t it?

The first time I learned of this term is when I met my husband. He and one of his brothers are 11 months apart born in the same year. My husband was born in January 1969 and his brother Craig was born in December 1969.