The first formal graduation exercises of the Janesville High School were held, with six members in the class; Levi Cass was principal.

The evidence

• “Levi Cass was principal at the time of the completion of this building. The first formal graduation exercises took place in 1859, there being six members in the class ; one of them was W. D.”

  1908-brown-rock-county/26-history-of-janesville.md, Vol. 2, PDF p. 43 / book p. 556

  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