This item was posted to the Jefferson County, Missouri list:

An Act to change the names of certain children herein named, and for other purposes. Whereas, it is represented that FRANCOIS VALLE, of Madison County has three illegitimate children by NANCY DeKELLIGAR, otherwise the three youngest children of Nancy Degier, to wit: FRANCOIS DEGIER, JOHN B. DEGIER AND LEWIS DEGIER; and whereas, the said FRANCOIS VALLE, is desirous that the names of the said three children shall be changed to the names of Francois Valle, John
Baptist Valle and Lewis Valle; and that said children shall be declared the legitimate heirs of the said Francois Valle, and capable in law of inheriting as such; Therefore, be it enacted by the General Assembly of the state of Missouri, as follows:
1. That the names of the said three children of said Francois Valle, to wit:
Francis Degier, John B. Degier, and Lewis Degier, otherwise the three youngest children of Nancy Degier, shall be, and the same are hereby changed and altered, and shall be known and called hereafter by the name of Francois Valle, John Baptist Valle, and Lewis Valle.
2. The said Francois Valle, John Baptist Valle, and Lewis Valle, be and they are hereby declared to be legitimate children to all entents and purposes, in every respect as though the said children had been begotten in lawful wedlock, and that said several children shall be able in all respects to inherit all the rights and privileges in law and equity of the said Francois
Valle, as other legitimate children could or would do; anything in any law to the
contrary notwithstanding. This act to take effect from and after its passage.

Approved, Dec 12, 1836

(I don't know why they call the mother DeKelligar and then Degier, unless the first is just a typo.)