dogwhipper
/ˈdɒɡˌwɪpə/noun
(A) Formerly: an official employed to whip dogs out of a church or chapel. Now historical. (b) In later use: ( English regional (chiefly northern )) a sexton, beadle.
Origin
Late 16th century; earliest use found in Thomas Nashe (d. c1601), writer. From dog + whipper.