What is now Lamar county was formed from Fayette and Marion counties on Feb. 4, 1867. It was then called Jones county. This remained til Nov. 13, 1867 when the county was abolished and returned to Fayette and Marion counties. On Oct 8 1868, the county was formed again and called Sanford county, this time. It remained Sanford county until Feb. 8, 1877. On this date, the name was officially changed to Lamar county. Good luck, Theresa