I have a facebook page that deals specifically with 'The Monto' Foley St/Corporation St/ Railway st area of Dublin with many photo's.
I have a large following and many old neighbours from Foley st etc on it.
Now I Have a photo of a man holding a child taken maybe 1930s with a name George Thompson in FOLEY ST/CORPORATION BUILDING'S, Maybe he could be your man.
I will pm you the details, im having probs uploading photos here.