Long Lost Uncle

[supertone]

My Grandmother passed away about two years ago. On her deathbed, she told her oldest son (my uncle) that her husband had cheated on her many years ago with a married woman; that affair resulted in a child. My uncle was given this man's name and was asked not to tell anybody else.

Well after my grand mother passed on, the story was told to my father and all of his siblings, which was then passed on to me. I've tracked down this man through the internet and my family knows his details but none of them have contacted him. They are worried about how this news may affect him.

I have recently moved inter-state and now live about half an hours drive away from my long-lost uncle. He is in his mid-fifties and I am unsure if he knows that his biological father isn't the man that raised him. I have the opportunity to try and meet with this man and organise a discussion with him or I could leave it be. What would you do in this situation?