Covered Wagon MystiqueTodd E. Humphrey, John W. Humphrey, Gardiner W. Cross · First published 1998Open the Tome
Greek and Roman TechnologyAndrew N. Sherwood, Milorad Nikolic, John W. Humphrey, John P. Oleson · First published 1997Open the Tome
Growing up with scienceMichael W. Dempsey, John Paton, Keith Wicks, Humphrey Evans · First published 1984Open the Tome
Captain Dreams, and other storiesCharles King, Alvin Humphrey Sydenham, Alice King Hamilton, W. H. Hamilton, R. Monckton- Dene, John G. Leefe · First published 1896Open the Tome
