Statistics for occurrence #1 of “Rappahannock river” in article 1 of The Daily Dispatch: May 20, 1864., [Electronic resource]:

...t resting on Gulney's Depot. This would indicate that he intends to move down on a line with the Richmond had Fredericksburg Railroad, while at the same time he would be in striking distance of the Rappahannock river . Several gunboats are reported to have been seen in the Rappahannock, some distance below Port Royal, on Wednesday last. Persons who came down on the train from Milford Station, yesterday eve...
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