Congress granted quarter sections of land to counties for seats of justice / county buildings; the two passages give different approval dates.

The evidence

• “Congress by an act approved May 2, 1824, granted to the several counties in the states and territories of the United States, a quarter section of land for the establishment of seats of justice thereon"^ Section 1 of act No. 22 of the territorial legislature of Wisconsin for 1839, entitled "An Act to Organize Rock County and for Other Purposes Relating to the same," approved February 13, 1839, provided that, from and after the passage of that act, "the county of Rock shall be and remain, to all intents and purposes, an organized county of this territory, and shall have all the rights and privileges which organized counties in the same, of right have."”

  1908-brown-rock-county/05-historic-evolution.md, Vol. 1, PDF p. 134 / book p. 120

  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