Does anyone know any very materialist historians, who have written about the causes of WWI?

There are too many to list, but you may want to try reading the article about WW 1 in the Article sticky thread on top of the History forum. :)

Will do, and I know there's a lot. :) But I'm looking for a rather prominent historian to point to as an ardent materialist in order to compare his writing with works by other historians.