Statistics for occurrence #1 of “J. L. Avery” in chapter 25 of Admiral David D. Porter, The Naval History of the Civil War.:

...ng-Engineer, Geo. W. Fulton; Acting-Carpenter, G. W. Armstrong. Lieutenant-Commander, S. L. Whelps; Assistant Surgeon, Adrian Hudson; Acting-Assistant Paymaster, W. H. Gilman; Acting-Master, J. L. Avery ; Acting-Ensign, R. M. Williams; Acting-Master's Mates, J. W. Litherbury and E. A. Decamp; Engineers: Acting-Chief, Henry Hartwig; Acting-Assistants, T. F. Ackerman, James Vanzant, G. W. Heisel and G....
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J. L. Avery 2 2 0 0 0 user votes

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