Me, my half-sister and her biological mum

Hazel and Suzanne (Supplied)

Last year, Sydney woman Suzanne Burdon discovered she had a half-sister, Hazel Clery, living on the other side of the world in Jacksonville, Florida.

They both grew up in England, and for their entire childhoods, they were little more than a half hour drive away from each other.

But they didn’t know each other existed until they were in their late 60s, in June of last year.

This is a story of two half-sisters connecting late in life, a birth mother turned adoptive mother, and what can happen when biological relatives turn up out of the blue.

You can hear my story for ABC RN’s Earshot here, and you can read my companion article for ABC News here.

Hazel and Suzanne cafe (Supplied)