The Collaborative International Dictionary of English v.0.48:

Summoner \Sum"mon*er\, n. [OE. somner, sompnour, OF. semoneor,
   F. semonneur. See Summon, v. t.]
   One who summons; one who cites by authority; specifically, a
   petty officer formerly employed to summon persons to appear
   in court; an apparitor.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Beadle \Bea"dle\, n. [OE. bedel, bidel, budel, OF. bedel, F.
   bedeau, fr. OHG. butil, putil, G. b["u]ttel, fr. OHG. biotan,
   G. bieten, to bid, confused with AS. bydel, the same word as
   OHG. butil. See. Bid, v.]
   1. A messenger or crier of a court; a servitor; one who cites
      or bids persons to appear and answer; -- called also an
      apparitor or summoner.
      [1913 Webster]

   2. An officer in a university, who precedes public
      processions of officers and students. [Eng.]
      [1913 Webster]

   Note: In this sense the archaic spellings bedel (Oxford) and
         bedell (Cambridge) are preserved.
         [1913 Webster]

   3. An inferior parish officer in England having a variety of
      duties, as the preservation of order in church service,
      the chastisement of petty offenders, etc.
      [1913 Webster]