O'Neil, James A., [205].

O'Neill, —, [194].

Oregon (country, territory, and state), [15], [16], [17], [19], [20], [21], [22], [25], [27], [29], [30], [32], [33], [34], [35], [36], [37], [39], [40], [41], [42], [44], [48], [49], [51], [52], [53], [54], [56], [57], [58], [59], [61], [62], [63], [64]-[68], [69], [70], [71], [77], [79], [81], [83], [84], [85], [86], [88], [91], [92], [94], [95], [96], [100], [101], [103], [104], [109], [110], [112], [113], [114], [115], [119], [121], [122], [123], [124], [126], [129], [131], [132], [135], [137], [138], [139], [140], [142], [143], [144], [145], [148], [153], [154], [156], [158], [160], [161], [162], [164], [165], [166], [167], [168], [169], [170], [171], [172], [176], [185], [187], [188], [190], [196], [197], [198], [199], [201], [202], [204], [205], [206], [207], [208], [209], [211], [212], [213], [218], [221], [222], [223], [224], [227], [228], [229], [231], [233], [235], [238], [240], [250], [251], [252], [254], [255], [256], [257], [258], [259], [260], [261], [262], [263], [265], [266], [268], [269], [270], [271], [273], [274], [276], [277], [278], [280], [281], [283], [284].

Oregon (ship), [195].

Oregon Bill, [223], [233] (see also Donation Land Law).

Oregon City (Ore.), [42], [59], [66], [68], [69], [70], [80], [82], [87], [91], [96], [101], [102], [103], [106], [107], [108], [110], [111], [115], [116], [118], [121], [122], [123], [124], [125], [127], [132], [135], [136], [137], [138], [139], [140], [141], [142], [154], [155], [157], [159], [202], [205], [206], [207], [208], [211], [212], [213], [219], [220], [222], [224], [225], [226], [227], [234], [237], [240], [241], [242], [243], [244], [245], [247], [272], [274], [278], [281], [282], [285].

Oregon City Claim, [124] (see also Land claims).

Oregon Donation Law, [19] (see also Donation Land Law).

Oregon Historical Society, [16], [68], [75], [161], [180], [187], [212], [218], [223], [224], [226], [263], [284].

Oregon House Journal, cited, [153], [160].