School teaching terms spanning 1842: Daniel Nurse taught the school in the winter of 1841-42, and Mr. Benedict taught in the winter of 1842-43 (a term beginning in late 1842).

The evidence

• “Daniel Nurse taught the school in the winter of 1841-42 and Mr. Benedict in 1842-43. Orrin Guernsey was the first teacher to wield the birch rod in the new frame building during the winter of 1843-44.”

  1908-brown-rock-county/12-janesville-schools.md, Vol. 1, PDF p. 280 / book p. 257

  Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.

  Grade A: Found on a page of one of our sources