AM
's paternal grandfather, James Manning
, a Unitarian minister at Exeter, employed the radical publisher Joseph Johnson
for at least two publications of a religious nature during the 1790s.
Stephen, Sir Leslie, and Sidney Lee, editors. The Dictionary of National Biography. Smith, Elder.
“Books with Devon Imprints: a handlist to 1800”. Exeter Working Papers in British Book Trade History: Books with Local Imprints, 6.