http://www.pennlive.com/midstate/index.ssf/2008/04/michelle_obama_will_visit_york.html"Michelle Obama will be in York Tuesday to lead a community event at the Strand-Capitol Performing Art Center. Michelle Obama will be in York Tuesday to speak at a community event on behalf of her husband, Sen. Barack Obama, D-Ill, in his quest for the Democratic nomination for president.
Michelle Obama is scheduled to speak at the program to begin at 11:45 a.m. in the Strand-Capitol Performing Arts Center, 50 N. George St., York.
The event is free and open to the public, but seating is limited and a ticket is required."
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I'm guessing tickets are available from the York Obama office.