The following is a summary of acts which authorized boundary changes for Marion County.
- Acts of 1829-30, Chapter 191, directed the Secretary of State to certify for printing the Private Act establishing the town of Jasper as the seat of justice for Marion County. This Act had been passed on October 30, 1819, but through error, had never been printed.
- Acts of 1831, Chapter 222, made William Gibson a citizen of Franklin County, presumably by attaching his land to that county. The Act itself contained language which made him "subject to perform all the duties enjoined by law upon the citizens of Franklin County, and to enjoy the same privileges, etc," but did not specifically transfer his land.
- Acts of 1833, Chapter 15, established the boundary line between the counties of Marion and Hamilton, running southwardly to the state of Georgia. This was repealed by Chapter 135, Acts of 1835-36, which defined another boundary line across the top of Raccoon Mountain, and was later repealed by Chapter 179, Acts of 1841-42.
- Acts of 1853-54, Chapter 181, empowered the Marion County Court to appoint a surveyor with necessary chain carriers and markers to run and mark a new boundary line between Marion and Grundy Counties; to be paid by the Grundy County Court.
- Acts of 1855-56, Chapter 162, attached the First and Second Civil Districts of Marion County to Hamilton County.
- Private Acts of 1917, Chapters 366 and Chapter 477, changed the Marion Hamilton County line, and both were repealed by Private Acts of 1919, Chapter 44.