Source : Webster's Revised Unabridged Dictionary (1913)

Hagiographer \Ha`gi*og"ra*pher\, n.
   One of the writers of the hagiographa; a writer of lives of
   the saints. --Shipley.

Source : WordNet®

hagiographer
     n : the author of a worshipful or idealizing biography [syn: {hagiographist},
          {hagiologist}]