Thanks for the response. Yes, the Sanitary Cmsn was a forerunner of the Red Cross, and comprised mainly of women during the Civil War. However,Hist. Times Encyl. of the Civil War (Faust, ed.) describes an all-male, all-mil headquarters establishment, w/o giving composition. As for the commo people,
from at least the 1870s, with the drastic reduction of the Sig Corps, expansion into meteorological and polar research and acquisition of wire comms, the term Signal Service came into regular use. By the time of the Span-Am wire, the service was so reduced in number that about a dozen "Volunteer Signal Corps" units were raised. Not sure exactly when the term, "Corps," came back into use. 1894 seemed a little early for a 2nd LT to identify with Sig Corps, but perhaps I'm wrong. Anyway, any search that leads to Mark Twain is worthwhile!
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