Dear Dorothy,

Welcome to the message board. Have you and Helen seen this article from the Missouri Historical Review?

Hess, Earl J. "The 12th Missouri Infantry: A Socio-Military Profile of a Union Regiment." Missouri Historical Review, 76 (October 1981), pp. 53-77.

I can't help you with your questions about your grandmother's presence in a Helena, AR military camp; however, I would invite you to duplicate your question on the Arkansas in the Civil War Message Board at http://history-sites.com/cgi-bin/boards/arcwmb . Maybe one of the folks there can offer some info.

Jim Martin