From Irwin’s notebooks: after his father's death:
“Leaving no secrets, no letters, no money, no insurance, no fame, only the bare uncritical lifelong love which
brooked no thought of betrayal, no thought of ego.His sharp unforgiving look at Marian when she called me
a bloody fool – not a striking or unusual charge in our house and not meant. But I could see the clamp of judgement
tightening my father’s mouth."