I'm not familiar with the Union League...I don't go into Philly unless it's absolutely neccessary.
I'm keeping an eye out for something closer to home. There is an English pub called Stoney's, a couple of miles into Delaware on Rt.202. I believe he has a Burns night every year, but I haven't been able to get to it. I'll have to give him a call and see what he's got going on.

Scott