Subjects: the river and i (sorted alphabetically by title)
- Frontier and pioneer life -- Pennsylvania -- Juniata River Valley
- Frontier and pioneer life -- Yukon River Valley (Yukon and Alaska) -- Fiction
- Fur traders -- Yellowstone River Valley -- Fiction
- Gambia River -- Description and travel
- Gamblers -- Mississippi River -- Biography
- Gambling -- Mississippi River -- History -- 19th century
- Gambling on river boats -- Mississippi River -- History -- 19th century
- Garonne River (Spain and France) -- Fiction
- Geology -- Amazon River Valley
- Geology -- Connecticut River Valley
- Geul River Valley (Belgium and Netherlands) -- Description and travel
- Gold mines and mining -- Yukon River Valley (Yukon and Alaska) -- Fiction
- Hudson River (N.Y. and N.J.) -- Fiction
- Hudson River (N.Y. and N.J.) -- Guidebooks
- Hudson River (N.Y. and N.J.) -- History
- Hudson River (N.Y. and N.J.) -- Juvenile fiction
- Hudson River (N.Y. and N.J.) -- Pictorial works
- Hudson River Region (N.Y. and N.J.) -- History
- Hudson River Valley (N.Y. and N.J.) -- Description and travel
- Hudson River Valley (N.Y. and N.J.) -- Fiction
- Hudson River Valley (N.Y. and N.J.) -- History
- Hudson River Valley (N.Y. and N.J.) -- Social life and customs -- Juvenile fiction
- Hugo, Victor, 1802-1885 -- Travel -- Rhine River Valley
- Hunting -- Mississippi River Valley
- Ice on rivers, lakes, etc. -- Great Britain