According to The Aerodrome the only two WWI aces with the same last name who received the Croix de Guerre were
Wilbert White of the US, and
Joseph White of Australia. However, niether were awarded the Legion de Honnuer (SP?). The info on Joseph's burial site is not listed, but it says Wilbert is buried in Romagne Military Cemetery. So given that information I'd have to say Joseph and Wilbert aren't the guys you're looking for. I'd have to say that either The Aerodrome missed a guy, or that one of your pilots was not an ace, and therefore not listed on the list of names on this site.
Sorry for the let down, I'll keep an eye out while I'm doing my research though.