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Throughout the maelstrom of his professional life Moore continued sonnetizing, eventually filling thirty steel cabinets in an outbuilding of his home, his "sonnetorium" (American, p.462). Various sources credit Moore with having written anywhere from fifty to one hundred thousand sonnets. Moore "was said to have kept a pad of paper attached to the dashboard of his car and scratched off a sonnet…every time he had to wait for a red light" (Ciardi, p. 27). Moore described his writing as a "compulsive addiction" and as "occupational therapy" (American, p. 462). In a 1956 reunion with other "Fugitives" at Vanderbilt University Moore maintained that he "never dared write more than fourteen lines at a time (and was) probably inhibited from doing so" (Vanderbilt p.148).
http://www.ncteamericancollection.org/litmap/moore_merrill_tn1.htm


http://www.sonnets.org/sterner.htm