What does Byrd say about McKinley's character in Paragraphs 30 and 43?
30 Now the stream of air pouring down the pass roughened perceptibly. The great wing shivered and teetered as it balanced itself against the changing pressures. The wind from the left flowed against Fisher's steep flanks, and the constant, hammering bumps made footing uncertain in the plane. But McKinley steadily trained his 50-pound camera on the mountains to the left. The uncertainties of load and ceiling were not his concern. His only concern was photographs--photographs over which students and geographers pore in the calm quiet of their studies.
43 The sacrifice swung the scales. The plane literally rose with a jump, the engines dug in, and we soon showed a gain in altitude of anywhere from 300 to 400 feet. It was what we wanted. We should clear the pass with about 500 feet to spare. Balchen gave a shout of joy. It was just as well. We could dump no more food. There was nothing left to dump except McKinley's camera. I am sure that, had he been asked to put it overboard, he would have done so instantly; and I am equally sure he would have followed the precious instrument with his own body.