Statistics for occurrence #1 of “Mr. Blydenburgh” in page 394 of Admiral David D. Porter, The Naval History of the Civil War.:

...reful attention to the steerage and soundings of the vessel, and by his skill and vigilance in keeping the ship clear of the shoals. I desire to commend him especially to your notice. My clerk, Mr. Blydenburgh , acted as my aide, and did prompt and good service. The two oldest seamen in the ship, John Dennis and Henry L. Coons, both quartermasters — the one at the wheel and the other at the signal...
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