Peter says this in his manuscript…
Although it is not known exactly when, but more likely to be while Murphy was with the RAF, he was christened with the name that would stay with him forever “Sticky”.
Sticky got his name because he would never let go of anything; he was a “stickler” for seeing something through. If he got a bee in his bonnet he would pursue it to the last… until whatever had bothered him had reached a conclusion.
Now Peter knows who was Sticky’s navigator.