I found this page on the internet, and it is clearly referencing Hamilton County, Florida. However, I have been unable to find any additional information about Jackson Spring, nor I have found anyone who has ever heard of it or knows where it is. If you have any information pertaining to this spring/town, please email me at email@example.com.
1831 Laws of Florida Territory 9th Session
ACTS OF THE LEGISLATIVE COUNCIL OF THE Territory of Florida
An ACT to incorporate the Jackson Spring, in Hamilton county.
Sec. 1. Be it enacted by the Governor and Legislative Council of the Territory of Florida, That John Lee, Jas. T. Hooker, W.B. Hooker, Jos. Bryant, and Jas. D. Prevatt be, and they are hereby, created a corporation and body politic, by the name of the “Commissioners of Jackson Spring,” and by said name had style, may sue and be sued, plead and be impleaded, and do and perform all acts and things necessary for a corporation to do, for the purposes hereinafter mentioned.
Sec. 2. Be it further enacted, That the said commissioners shall at their first regular meeting appoint one of ther number chairman of their board, who shall preside at all their meetings, unless he be absent, in which case the commissioners present shall nominate a chairman for the time being: Provided, that three of said commissioners shall constitute a quorum for the transaction of business.
Sec. 3. Be it further enacted, That the said commissioners shall have power to pass all such bye-laws, and ordinances as may be deemed necessary for the preservation of good order, and the suppression of indecent and immoral conduct within the limits of the corporation hereby created; and to impose upon, and collect, of all offenders, against said bye-laws, such fines as they in their discretion may see fit to prescribe: Provided, the same shall not exceed twenty dollars, and that said bye-laws be not repugnant to the constitution and laws of the United States, or the laws of this territory.
Sec. 4. Be it further enacted, That all fines collected by said corporation shall be applied to such charitable purposes as said commissioners shall determine: Provided, however, that said board shall have the power, if they see proper, to appoint a marshal, who shall receive such compensation for his services, to be paid our of the funds arising from fines, as said board may direct.
Sec. 5. And be it further enacted, And be it further enacted, That said corporation
Shall extend one mile, in each and every direction, from the Spring, in the county of Hamilton, known as the Jackson Spring.
Passed, Feb. 4, 1831.
Approved, Feb. 9, 1831.
http://fulltext10.fcla.edu/cgi/t/text/text-idx?cc=ftl;subview=fullcitation;idno=ftl1831, 1831 Laws of Florida Territory 9th Session (Tallahassee, Florida: Tallahassee: Gibson & Smith, Territorial printers, 1831).