I understand better than I once did how significant feedback, support, assistance, and conversations with others can be for what otherwise seems like the rather solitary business of historical research. This work was a long time in the making, so I am grateful to many people.
I have received valuable assistance from several archival staff members at the American Baptist Historical Society and Drew University. I am also thankful for the help given by Bonnie Houser at the Taylor University archives, David Himrod at the United Library of Garrett-Evangelical Theological Seminary, and William Kostlevy at the B. L. Fisher Library at Asbury Theological Seminary. Joyce Lee and every staff member I encountered at the Flower Pentecostal Heritage Center have been particularly helpful and gracious.
The origins of this work began many years ago in graduate school at the University of Notre Dame, where I found a particularly inspiring community in which to launch into historical scholarship. I regularly found myself discussing American religion and evangelicalism with many people, including Tom Bergler, Joe Creech, Darren Dochuk, Scott Flipse, Nicole Gothelf, Mike Hamilton, Randy Heinig, Fred Jordan, Tommy Kidd, Steve Nolt, Rick Ostrander, Kurt Peterson, Anita Specht, Kathleen Sprows Cummings, Bill Svelmoe, Peter Wallace, and John Wigger. Those who read and made valuable observations on early portions of the material in this book included Gail Bederman, Nathan Hatch, Walter Nugent, and Grant Wacker. I am thankful also for feedback from Jay Green, Bob Lay, and the late Gary McGee. Bob Woodberry not only broadened my understanding of the missionary movement but also located sources on Karen Christianity that I otherwise would not have found. Joel Carpenter has given particularly timely and incisive advice. I am also deeply grateful to Bill Ringenberg and Alan Winquist for inspiring me to head down the path of historical scholarship in the first place. George Marsden has been a formative influence all along the way on this project. His thoughtful analysis, dedication, high standards, insights, feedback, integrity, and friendship have made him a truly invaluable guide.