Ray Breyer wrote:
"The ACL's 1947 freight car diagram book says that they were all rebuilt into
all-steel XMs and XAs between 1939-1944. The diagrams state 'Murphy improved
solid steel roofs, 1/8" steel sheets'"
We know that the ACL reused the original Murphy XLA roofs of their Class O-14
USRA DS boxcars during their mid-1930s rebuilding to Class O-14A steel boxcars.
This would seem to indicate that the original Class O-16 boxcars had Murphy