[f. CALENDAR v. + -ER1.] One who calendars (esp. documents).
1864. Q. Rev., CXVI. 354. The rules and regulations which he [the Master of the Rolls] has framed for the guidance of the Calendarers.
1881. S. R. Gardiner, in Academy, 29 Jan., 74. To a calendarer the work of writing a preface must be something like a holiday.