Even before we finished our search for the weight 16 case, Thompson was
already busy at work. In a letter dated October 24, 1983, he enclosed a
copy of his unpublished note [30] with a list of 82 starting
configurations for the weight 19 case. He constructed them by hand and had
not checked for pairwise inequivalence. He ended the letter with ``I hope
you'll press on with this question, although perhaps I am too greedy''.