Statistics for occurrence #1 of “J. M. Henken” in chapter 1.14 of Southern Historical Society Papers, Volume 27.:

...Bidy's Artillery, Lexington, N. C. W. J. Porter, captain, Company D, 61st Alabama. Peter Mackin, lieutenant, Company I, 16th Mississippi. John W. Hanagan, colonel, 8th South Carolina. J. M. Henken , first lieutenant, Company K, 12th South Carolina. John J. Cobeau, lieutenant, Company B, 10th Mississippi. S. T. Moore, second lieutenant, Company F, King's R, Alabama. J. E. Duncan, privat...
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