| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Scarlet Feather | Townley, Houghton | en | | | Grefé, Will [Illustrator] | | 2009-02-19 |
| Elements of Structural and Systematic Botany
For High Schools and Elementary College Courses | Campbell, Douglas Houghton, 1859-1953 | en | | | | | 2007-01-17 |
| The Expedition of the Donner Party and its Tragic Fate | Houghton, Eliza Poor Donner | en | | | | | 2004-02-01 |
| Life of St. Francis of Assisi | Sabatier, Paul, 1858-1928 | en | | | Houghton, Louise Seymour, 1838-1920 [Translator] | | 2006-07-08 |
| Country Walks of a Naturalist with His Children | Houghton, W. (William), 1828-1895 | en | | | | Natural history -- Juvenile literature; Nature study -- Juvenile literature | 2007-12-20 |