Not directly. Looks like you can take the TRE from Richland hill station all the way to union station. DO NOT take the red line to Westmoreland station. Assuming south side ballroom is on 1135 Lamar street you're probably better off taking an uber from union station. Looks like you can get a little closer by taking red line south to cedars station.
Yes, go all the way to the end (Union Station) then take the Red Line trolly to Westmoreland.
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