How we cite our quotes: Citations follow this format: (Chapter.Paragraph)
Quote #7
His name was Mudd […]. No one could recall who he was or what he had looked like, least of all Captain Piltchard and Captain Wren, who remembered only that a new officer had shown up at the operations tent just in time to be killed and who colored uneasily every time the matter of the dead man in Yossarian's tent was mentioned. The only ones who might have seen Mudd, the men on the same plane, had all been blown to bits with him.
Yossarian, on the other hand, knew exactly who Mudd was. Mudd was the unknown soldier who had never had a chance, for that was the only thing anyone ever did know about all the unknown soldiers – they never had a chance. They had to be dead. (10.30-31)
This passage gets at the heart of identity as a combination of one's name, actions, and associates, all of which is hollow without a face. No one truly knows who the dead man was. Yossarian cares only for the man in retrospect.
Quote #8
Yossarian choked on his toast and eggs at the enormity of his error in tearing her [Luciana's] long, lithe, nude, young vibrant limbs into tiny pieces of paper so impudently and dumping her down so smugly into the gutter from the curb. He missed her terribly already. (16.113)
Yossarian associates Luciana's identity and person with the piece of paper. This reveals that he considers her as a material asset, a contact for sex, and not a real human being.
Quote #9
His [Yossarian's] system was sturdy enough to survive a case of someone else's malaria or influenza with scarcely any discomfort at all. He could come through other people's tonsillectomies without suffering any postoperative distress and even endure their hernias and hemorrhoids with only mild nausea and revulsion. (17.2)
Yossarian's ability to handle others' illnesses suggests an "everyman" identity. Yossarian represents the common man by sharing and surviving their diseases.