Definition of "historiographer"

May Your Majeſty be pleaſed to accept theſe remains of a noble Author, as they vvere collected by the care of Your late Hiſtoriographer; […]

1734, Mary Stephens, “To the King”, in [Francis] Bacon, Robert Stephens, compiler, edited by [John Lockyer], Letters and Remains of the Lord Chancellor Bacon, London: […] W[illiam] Bowyer, page [i]

"That's a fine young fellow," said the historiographer of earwigs, to an American who stood next him in the crowd.

1856, L. S. Lavenu, chapter XVII, in Erlesmere; or, Contrasts of Character‎, volume 1, London: Smith, Elder & Co., page 171