"In the beginning there was the word . . . . . . and the word was changed."
I was recently informed Allen Jones, Secretary-Treasurer of the 41st Infantry Division Association had died. This info turned out to be erroneous. He's still alive and kicking and can be reached at:
41st Infantry Division Association Allen Jones, Secretary-Treasurer P. O. Box 554 West Linn, OR 97068-0554
I found no reference to anything published on the 218th Field Artillery Battalion but you might try "The Jungleers; a History of the 41st Infantry Division" by William F. McCartney, published by the Infantry Journal Press, Washington, D. C., 1949. Your chances of acquiring a copy are slim but you might be able to borrow through Inter-Library Loan.