Possibly a copy of the book is at the Texas State Archives. I personally found a manuscript there (typewritten) about or by McLean, subject concerning my ancestor, William P. Rose et al. The Archives photocopied it for me--for a fee, but I no longer have it--sent it to a cousin. You might call the reference archivist on duty and inquire about the manuscript. The State Library is on the other side of the same building in Austin. They do some interlibrary loan, but probably not of rare or old books. But you won't know if you don't ask. E.W.Wallace in southern California