why no mention of wally cox?

they knew each other as kids, then roomed together in the early nyc days. in his autobio, brando called wally his brother and the person he was closest to in life except for his sisters.

yet not one single word about the friendship. the name wally cox was not mentioned, unless i somehow missed it, as did anyone else i've talked to who has seen it.

there's even existing footage brando's guest shot on wally's tv show 'mr peepers'

makes no sense whatsoever to me.