Answer:
My relatives who live in Long Island NY say that the man 3rd to the left is my great-grandfather, Thomas Enright. His father was Patrick Enright who came with family and son from County Claire, Ireland in 1910s.
My family recognized our connection by his face but also by the gloves with the stars on them... We have both pictures (Lunchtime Atop a Skyscraper; Resting on a Girder) framed at our family houses.
Where can I claim my royalities?? :)
The man on the far left is my Great Granduncle, Matty O'Shaughnessy and I'm from Galway which is right next to Clare..