An excellent place to learn your ancestor’s unique (or not so unique) migration path across the country is from his or her pension record.
Nancy Rampley’s pension record documents her parents’ migration from Kentucky into Indiana into Illinois into Missouri. And it was her husband who was actually in the Civil War.
Revolutionary War era pensions for two of my wife’s ancestors shows their migration across several states from the time of the Revolution until the 1830s.
Remember that a pension on a sibling or a cousin of an ancestor might provide clues about that ancestor’s migrations as well.