Statistics for occurrence #1 of “General Keys” in entry baird-absalom of Harper's Encyclopedia of United States History:

...made assistant adjutant-general. He became aide to General Tyler in the battle of Bull Run, and in November was made assistant inspector-general, with the rank of major. In March, 1862, he became General Keys 's chief of staff; and in April he was made brigadier-general of volunterrs, and sent to Kentucky. He commanded a division under General Granger in April, 1863, and was afterwards active in northern...
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