Alfers, John

The provided sources list three specific individuals named John. These include John Alfers, John R. Eberhardt, and John J. Jack Fluehr, Jr. The documentation serves as a record of these persons, identifying them by their full names and variations. No further biographical details or professional affiliations are mentioned in the source materials, which focus exclusively on the identification of Alfers, Eberhardt, and Fluehr within the provided data set for the records.