790th Railway Operating Battalion~~ Matlosz

Tom writers ....

My Dad, Pvt. Michael W. Matlosz, served in the 790th Railway Operating Company (Battalion?) in the Philippines during WWII. Any information about the 790th which you can provide, like date and area of deployment, would be most appreciated.
I know that his records were destroyed in the St. Louis fire. I've attached a few photos. Dad can be seen in 0164 and 0165.