MARCH 6TH, 1865: Commodore F.A. Parker ordered Lt.Cmdr. Edward Hooker to take the USS Commodore Read, Yankee, Delaware and Heliotrope up the Rappahannock River to cooperate with an Army detachment in conducting a raid near Fredericksburg, Virginia.
Parker cautioned: "...you will be particularly careful in looking out for torpedoes; having all narrow channels and shoal places swept by small boats kept in advance of the flotilla. At points where torpedoes may be exploded from shore, you will land flanking parties, and you are to shell as usual all heights..."
In case of masked batteries on them.