Joe Estill was engaged on road building projects around Leakey, Texas and it was in that small isolated town that Mary Ellen was brought up. Certainly an engineer to improve the roads was vital.
Joe Estill ay na-pansin sa mga kalye sa paligid ng gusali ng mga proyekto Leakey, Texas at ito ay sa maliit na ang ilang bayan na Mary Ellen ay nagdala up. Totoong ng isang engineer na mapabuti ang daan ay mahalaga sa buhay.