Yes, the book does apply to Shufeldts & Kenneth Earl Shufeldt is in it. Quite a bit of information all the way back to George Zophel, father of the immigrant ancestor Johann George. Please contact me if you would like copies of the information I have. His parent were Charles Marion Shufeld Mary W Meyers, siblings Emogene, Harold Edwin, Darrell Eugene. Charles Marion parents were Charles Shufeldt & Adora M Lowry. I'll send you the files.