St. Mark's Episcopal Church, Glen Ellyn, IL Website: http://www.stmarksglenellyn.org/ frontdesk@stmarksglenellyn.org Province #: V Diocese: Chicago Office Address: 393 North Main Street Glen Ellyn, IL   60187 The Rev. Sheila Ferguson, Rector; the Rev. Dr. Walter F. Dunnett, Assistant Primary Phone: 630-858-1020 Fax: 630-858-1035