Statistics for occurrence #1 of “Richard Johnston” in chapter 13, page 382 of Col. John M. Harrell, Confederate Military History, a library of Confederate States Military History: Volume 10.2, Arkansas:

...tary of war the Army Medical Board was convened for examinations, April, 1863, Little Rock, Ark., and a new list was begun: Robert Joe Bell, Monroe county, surgeon Pickett's Missouri infantry. Richard Johnston , St. Martinsville, La., surgeon chemical laboratory, Arkadelphia. Paul Christian Yates, Huntsville, Mo., surgeon Shaver's Arkansas infantry. Jesse Edward Thompson, Powhatan, Ark., assistant surge...
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