Statistics for occurrence #1 of “Lieutenant-Commander, John H. Upshur” in chapter 41 of Admiral David D. Porter, The Naval History of the Civil War.:

...nder William H. Macomb, an officer fully competent to perform the duties required of him. Acting-Rear-Admiral, Samuel P. Lee. Fleet-Captain, Lieutenant-Commander John S. Barnes. Lieutenant-Commander, John H. Upshur ; Lieutenant, Jos. P. Fyffe; Fleet Surgeon, W. Maxwell Wood; Assistant Surgeons, G. S. Franklin, W. S. Fort and A. Mathewson; Fleet Paymaster, Chas. P. Upham; Chaplain, Thomas G. Salter; Marine Office...
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