As part of HSP's Ancestry Day on March 14, 2014, Aaron McWilliams discussed the types of records available to genealogists at the Pennsylvania State Archives. Mr. McWilliams is a reference archivist at the Pennsylvania State Archives. He has appeared on WITF’s Radio Smart Talk and NBC’s “Who Do You Think You Are?” McWilliams worked previously at the Maryland State Archives and as a professional genealogist.