Not having found Gen. Buell in Nashville, I sent him this note, “I have been in the City since an early hour this morning, anxious and expecting to see you. When I first arrived I understood that you were to be over today, but it is now growing too late for me to remain longer.
“If I could see the necessity of more troops here, I would be most happy to supply them. My own impression is, however, that the enemy are not far north of the Tennessee line. I was anxious to know what information you might have on the subject. Gen. Smith will be here this evening, with probably, 2000 men requested by you, and should still more be required, address me at Clarksville. Tonight I shall return to Fort Donelson, but will take up my Head Quarters at Clarksville the next day. Should you deem the command under Gen. Smith unnecessary to your security, I request that they be ordered back. I am in daily expectation of orders that will require all my available force.”
The Papers of Ulysses S Grant, Vol 4, p 293-4
O.R., I, vii, 670-1