Do the Clohessys begrudge Frankie his share of their morning breakfast?

No, though the family is practically starving, no one comments or begrudges sharing with Frank. He seems to fit right in with the rest of them.

Paddy says nothing because Mrs. Clohessy is spooning porridge into mugs and jam jars and one bowl and telling us to eat up and go to school. She sits at the table eating her porridge. Her hair is gray black and dirty. It dangles in the bowl and picks up bits of porridge and drops of milk. The children slurp the porridge and complain they didn't get enough, they're starving with the hunger.