Statistics for occurrence #1 of “Captain John Marston” in chapter 1.1 of Southern Historical Society Papers, Volume 20.:

...proved to be a failure and a great disappointment to her projectors. I doubt much whether they relied upon our statements, for on March 7th Mr. Welles, Secretary of the United States Navy, wrote to Captain John Marston , United States Navy, commanding at Fortress Monroe: Send the St. Lawrence, Congress, and Cumberland immediately into the Potomac river. Use steam to tow them up. Let there be no delay. This order...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.