The only J. M. Martin who served in Co. I, 14th Arkansas Infantry, was John M. Martin, a Marion County man born c1845 in Tennessee. He applied for a Confederate pension from Baxter County in 1903 (Pension No. 14451, approved August 8, 1903).

The J. M. Martin who is interred in Oaklawn Cemetery at Wynnewood, Oklahoma, is James Menam Martin, born 1849 in Tennessee. He is not listed in the 14th Arkansas, and anyway was too young to have enlisted in 1861. I doubt that he was even an Arkansan -- he married in his hative State of Tennessee, in 1882. I believe that someone placed a VA marker on his grave in the mistaken assumption that he was the J. M. Martin who served in Co. I, 14th Arkansas. Unfortunately, this happens far too often.