In Dallas, once on 183 in Irving, stay in the left lane all the way to Ft Worth(183 & 121 merge, then when they split stay on 121). When you are almost in Downtown Ft Worth, Take The Sylvania Exit, go right 1/2 block, turn into parking lot on left (home of the Stagecoach Ballroom).
From Downtown Ft Worth
Take Weatherford Street East (Weatherford is one-way,i.e. East) out of Downtown Ft Worth. Stay in the left lane and exit Belknap to the left. As soon as you cross the bridge get in right hand lane. The Stagecoach is on the right hand side before the first traffic light at Sylvania.