Richie, I checked repertoire.bmi.com - Bootleg John writer listed as Marvin Charles Davis; This Weary Heart by Joyce Morris; Loving You Too Well by Stanley Carter; there are 4 songs listed with the sharecropper title - the oldest appears to be by Jimmie Davis. Hope this gives you some leads, I'm not familiar with any of the names, although I'm guessing Stanley Carter might be part of the Carter family.