Life of David Haggart, who was executed at Edinburgh… (1821)
“ Haggart thought himself certain of his own liberty, but he thought it would be a grand thing to clean the jail of all the prisoners. Laurie, another prisoner, proposed getting a stone and tying it in a napkin, and some morning to knock down Hunter, the head jailor, and take the keys from him. Haggart was not fond of using the stone, as he did not want to hurt the jailor; and he proposed, when Thomas Morrin came up to the man under sentence of death, to gag him into a closet at the head of the stair, and take the keys from him; Dunbar, and some others, got the stone and put it into a bag. ”
