In force, Dec.[December] 4, 1838.
AN ACT for the purposes therein mentioned.
1
Plat vacated.
Plat in full force.
Sec.[Section] 1. Be it enacted by the People of the State of Illinois, represented in the General Assembly, That the sub-division of block number thirty, in section sixteen, or school section, in township thirty-nine north, of range fourteen east of the third principal meridian,2 and the plat thereof, as made and recorded in the office of the recorder of Cook county, by one Russell E. Hecock, be, and the same are hereby made null and
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void; and that the subsequent sub-division of the premises aforesaid, and the plat thereof, as made and recorded in the office of the recorder of the county of Cook, State of Illinois, by one Francis G. Blanchard, be, and the same are hereby, declared to be in full force and virtue.
Sec. 2. This act to take effect and be in force from and after its passage.
[ certification ]
12/04/1838
Certificate of Sec.[Secretary] State.
This bill having been laid before the Council of Revision, and ten days not having intervened before the adjournment of the General Assembly, and the said bill not having been returned, with the objections of the Council, on the first day of the present session of the General Assembly, the same has become a law.
Given under my hand, the fourth day of December, 1838.
A, P. FIELD, Secretary of State.
1On July 12, 1837, Albert G. Leary in the House of Representatives presented the petition of Francis G. Blanchard and other citizens of Cook County, requesting vacation of certain subdivisions in Chicago. The House referred the petition to a select committee. In response to this petition, Leary of the aforesaid select committee introduced HB 13 in the House on July 13. The House passed the bill on July 14. The Senate concurred on July 18. The Senate and House having laid the bill before the Council of Revision, and ten days not having intervened before the adjournment of the special session of the Tenth General Assembly, and the Council not having returned the bill with objections on December 3, 1838, the first day of the first session of the Eleventh General Assembly, the act became law.
Journal of the House of Representatives of the Tenth General Assembly of the State of Illinois, at a Special Session of the General Assembly (Vandalia, IL: William Walters, 1837), 48, 64, 115, 125; Journal of the Senate of the Tenth General Assembly of the State of Illinois, at a Special Session (Vandalia, IL: William Walters, 1837), 54, 76, 88, 108-109.
2Block 30 of the school section was three blocks north of the South Branch of the Chicago River and five blocks west of the extreme western edge of the original plat of Chicago.
James S. Wright, “Chicago Plat Map,” 1834, RG 49: Records of the Bureau of Land Management, 1685-2006, Plats of Proposed Townsites, 1825-1915, National Archives, College Park, MD.

Printed Document, 2 page(s), Laws of the State of Illinois, Passed by the Eleventh General Assembly (Vandalia, IL: William Walters, 1839), 80-81, GA Session: 11-1,