Statistics for occurrence #1 of “Mr. Gray” in chapter 8, page 250 of Francis Jackson Garrison, William Lloyd Garrison, 1805-1879; the story of his life told by his children: volume 1:
... December the prison confessions of Nat Turner were printed in Baltimore in an edition of fifty thousand copies, whereupon Mr. Garrison advises the Grand Juries in the several slave States to indict Mr. Gray [the recipient of the confessions] and the printers of the
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