This one gives William A. Quarles as the Colonel, Commanding Post at Clarksville as of 22 Jan 1862.

See Column 4

Also some material on 91st Reg., Tenn Militia, if interested. Have more Militia info, if interested. See column 3.

http://chroniclingamerica.loc.gov/lccn/sn88061076/1862-02-14/ed-1/seq-2/#date1=1862&index=0&rows=20&words=1862+Clarksville&searchType=basic&sequence=0&state=Tennessee&date2=1922&proxtext=Clarksville+1862&y=15&x=13&dateFilterType=yearRange&page=1