I've checked through my notes on LaRue in Iowa and just don't have much of anything in the way of info in Lucas county. You may have to contact the Iowa Genealogical Society for assistance. The Russell LaRue who died in WWII, was from north central Iowa, Russell C.LaRue, not Russell A. LaRue. In the white pages (phone book) for Iowa, I find Russell A. Larue, 28975250th st, Leon Iowa 50144-2850. I wonder if this is Russell A. jr?