Years of reading difficult manuscripts in dull light were perhaps the cause of Anderson's failing eyesight, and for a large period of time, he relied on his graduate student (subsequently his wife) Marjorie Cunningham to do much of the readings.
Anos de ler manuscritos difíciles baixo a escasa luz foron quizais a causa da falta de visión de Anderson, e durante un longo período de tempo, confiou nunha estudante graduada (posteriormente a súa muller) Marjorie Cunningham para facer os traballos de lectura.