Re his book, I believe a copy is available at the Tennessee State Library and Archives in Nashville.

Do a google search "Memories of the War of the State," and this is what you will see:

Ernestine Y. Munn, “Memories of the War of the State. by Capt. William Eugene Yeatman”. 1953. 21. George C. Osborn, “A Tennessean at the Seige of ...

Good Hunting,

George Martin