map-engraver calls 7.10.1802 / 22.5.1809 Blake, map-engr calls
The only entries in British Book Trades Index for an engraver named Blake are for William Blake DNB 1757-1827 poet and artist and William Stadden Blake (will PCC 1814). Blake Records, Bentley p839 has info on him but no record of his having been a map-engraver except the reference in Godwin's diary. BBTI cite Laurence Worms, British Map Engravers, (work in progress) under William Blake the poet. The 1802 map-engraver may not, of course, have been called Blake. The BBTI doesn't have a category for map-engravers but those entries who were mapsellers or mapmakers and also engravers trading in London in 1802 were John Walker, John Luffman, John Cary, Thomas Conder, Edward Mogg & George Cary.. Other map makers were Benjamin Rees Davies, H Cooper, Major James Rennell, Alexander Dalrymple and Nathaniel Coltman.