If anyone finds a name of a soldier who died in the war, they are easily found if they are buried over seas. Use the American Battle Monuments Commission website www.ambc.gov. It is very easy to use and if anyone needs help let me know, but the site is pretty self explanatory. The information given is helpful too as it gives a date of death, regiment, division, and rank of each soldier.
If they are not buried over seas it will be harder to find, but your best bet is the site www.findagrave.com. This site is a little harder to use, but often times it is linked to ancestry.com searches.