Statistics for occurrence #1 of “J. D. Clark” in chapter 48 of Admiral David D. Porter, The Naval History of the Civil War.:

...n A. Graham. Captain, Henry Walke; Lieutenant-Commander, H. D. Todd; Lieutenant, G. P. Ryan; Surgeon, J. S. Kitchen; Assistant-Paymaster, J. P. Woodbury; Ensigns, Marston Niles, P. W. Lowry, J. D. Clark and J. B. Coghlan; Acting-Master's Mates. D. C. Harrington, O. G. Moore, E. N. R. Place and Charles Pease, Engineers: Acting-Chief, John Yates; Acting-First-Assistant, Wm. Tipton; Acting-Second-Ass...
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