"Playbooks in Repertory: A Study," Seventh International Marlowe Conference, Staunton, VA, Blackfriars Theater, 25-28 June 2013.
"Ur-Plays and Other Exercises in Making Things Up," Shakespeare Association of America annual meeting, Toronto, ON; "Lost Plays in Early Modern England," Matt Steggle and David McInnis, leaders, March 2013.
"Changing the Narrative: Repertory as Evidence in Theatre History." Margaret Dalziel Memorial Lecture. University of Otago, Dunedin, New Zealand. 5 September 2012.
"Changing the Narrative: Repertory as Evidence in Theatre History." Marion Adams Memorial Lecture. University of Melbourne, Melbourne, Australia. 30 August 2012.
"A Simple Query: Could Playgoers Hear the Difference Between Good Mighty Lines and Bad?" Shakespeare World Congress, Prague, Czech Republic, Seminar #19: "Expectations, Experience, and Experimentation in Shakespeare's Theatre," co-chaired by Roslyn L. Knutson and Per Sivefors, 2011.
"Lost Plays Not Lost to Marlowe," Shakespeare Association of America annual meeting, Bellevue, WA; Theater History Seminar, Leslie Thomson, leader, April 2011.
"Strength Training for Tamburlaine's Weak Sons Through Repertorial Commerce," MSA Session #357, "The Poetical Influence of Christopher Marlowe," MLA, January 2011.
"Lost Plays and Marlowe in Repertory," Shakespeare Seminar, University of London, November 2010.
"The Quintessential Clumper: F. G. Fleay and the Identification of Lost Plays," Shakespeare Association of America annual meeting, Chicago, Theater History Seminar, Paul Menzer, leader, April 2010.
"What's so Special about 1594," Shakespeare Association of America annual meeting; session title: "1594," 11 April 2009.
"Problem Solving in Theater History," "Outside In/ Inside Out: Shakespeare, the Globe and the Blackfriars," conference in honor of Andrew Gurr at Shakespeare's Globe, 24-26 October 2008.
“’Everybody knows …’: The Shrew Plays and Conventional Wisdom,” Shakespeare Association Annual Meeting, Theater History Seminar, Dallas, TX, Lawrence Manley, leader, March, 2008.
Keynote Address, “What was James Burbage Thinking???” at “Blackfriars IV,” Staunton, VA, October 2007. This address (without the sound track of Queen, “We are the Champions”) appears in a conference volume, Thunder at a Playhouse, edited by Peter Kanelos and Matt Kozusko (Selinsgrove, PA: Susquehanna University Press, forthcoming).
Keynote Address, “The Start of Something Big,” at “Shakespeare and the Queen’s Men,” Toronto, October 2006. Published in Locating the Queen's Men: Material Practices and Conditions of Playing, 1583-1603, ed. Helen Ostavich et al (Aldershot, Hampshire: Ashgate Publishing Ltd, 2009), 99-108.
“ Slim Pickin's,” Shakespeare Association of America Annual Meeting, Philadelphia, Theater History Seminar, Alan Nelson, leader, 2006.
“What if the Chamberlain's Men Had Gotten the Blackfriars Playhouse in 1597?” Blackfriars Conference III, Staunton, VA, October 2005.
“Plots and Lost Plays,” Shakespeare Association of America Annual Meeting, Bermuda, Theater History Seminar, Tiffany Stern, leader, March 2005
"A Bear, a Tree, and Not Much Else," Shakespeare Association of America Annual Meeting, New Orleans, Theater History Seminar, John Astington, leader, April 2004.
"That 'Richard the 2' in the King's Men's Repertory, 1611," Blackfriars Conference II, Staunton, VA, October 2003.
"Marlowe and Company Ownership," Fifth Marlowe International Conference, Cambridge, England, 2003. Published in Medieval and Renaissance Drama in England, 18 (2005), 37-46.
"Everything's Back in Play: The Impact of REED Scholarship on Theatre History," International Medieval Congress, Leeds, England, 2002. Published in REED in Review: Essays in Celebration of the First Twenty-Five Years, ed. Audrey Douglas and Sally-Beth MacLean (Toronto: Toronto University Press, 2006), 116-30.
"What's a Guy like John Davies Doing in a Seminar on Theater History?" Shakespeare Association of America Annual Meeting, Minneapolis, MN, Theater History Seminar, William Ingram, leader, March, 2002.
"What if there wasn't a 'Blackfriars Repertory'?" Blackfriars Conference I, Shenandoah Shakespeare, Staunton, VA, October 2001. Published in Inside Shakespeare: Essays on the Blackfriars Stage, ed. Paul Menzer (Selinsgrove: Susquehanna University Press, 2006), 54-60.
"Pembroke's Men in 1592-3, their Repertory and Commerce," Shakespeare Association of America Annual Meeting, Miami, FL, Theater History Seminar, Scott McMillin and Sally-Beth MacLean, leaders, April, 2001. Published in "Reading Acting Companies," by Scott McMillin, Early Theatre 4 (2001): 129-38.
"Repertory and Commerce," Massachusetts Institute for Renaissance Studies, University of Massachusetts, Amherst, MA, 17 October, 2000
"Stationers and Company Commerce: What's Happening in 1600-1?" Shakespeare Association of America Annual Meeting, Montreal, Quebec, Theater History Seminar, leader: Herb Berry, April 2000
"How I read A London Life and Learned to Love Theater History," for Bill Ingram Retirement Colloquium, University of Michigan, April 1999
"Marlowe's Plays on Tour," for a panel, "The Admiral's Men and Marlowe's Plays in Performance," Fourth International Marlowe Conference, Cambridge, England, June 29-July 3, 1998.
"Heminges' 'Diary': Was there a Commercial Logic to the Acquisition of Plays?" Shakespeare Association of America Annual Meeting, Cleveland, Ohio, Theater History Seminar, leader: Anne Lancashire, March 1998.
"All Trussed Up and No Place to Go: the Poetomachia and Company Commerce," Session IV: "Debunking Myths in Theater History," chaired by Lynda Boose, Shakespeare Association of America Annual Meeting, Washington D. C., 1997.
"'In the most vyle slauerie and miserable bondage': Slave Narratives in Elizabethan Documents," Shakespeare Association of America Annual Meeting, Albuquerque, Seminar: "Slaves and Slavery in English Renaissance Drama," leader: Judith Weil, 1994.
"'Captyved By the Turke': Marlowe's Audiences and the Rhetoric of Misfortune," International Meeting of the Marlowe Society of America, Cambridge, England, June 28-July 2, 1993.