O.
Ogden, Aaron, vs. Gibbon, [132].
Ohio, migration to, [67]; growth of population, [116], [156]; and Cumberland Road, [117]; canals, [157]-[160]; admitted as State (1802), [158]; railroads, [171]; influence of river trade on, [180].
Ohio and Lake Erie Company, [145].
Ohio Canal, [157], [159], [168], [169].
Ohio River, Washington and, [8], [12]; access of French and English to, [25]; value of cargoes on (1800), [74]; Baltimore and Ohio Railroad reaches (1853), [151], [183]; navigation, [180].
Old Bay Path, [15], [16].
Ontario (steamboat), [156].
Orange, Fort (Albany), [16]; see also Albany.
Ordinance of 1787, [170].
Oregon, western trail to, [188]; effect of acquisition on transportation, [191].
Orleans (steamboat), [78].
Ormsbee, of Connecticut, makes steamboat model, [104].
Ottawa (Ill.) canal terminal, [162].
Overland Stage Company, [189].
Overland Trail, [189], [191].