In November 2018 the National Archives and Records Adminsistration (NARA) of the United States placed online the digital images of burial cards for their servicemen who died during World War I.
Significantly, they include casualties who are not recorded on the American Battle Monuments Commission website. These men were sent home for re-burial in the United States. The cards make it possible to trace them and their families through other records.
Along with their name, rank, unit, service number and date of death are cause of death, next of kin and burial arrangements. There were thirty five Fleming families who accepted the government’s offer to repatriate their son home for re-burial. The location of many of these graves is still unknown. You can see the list at https://fleming.one-name.net/wwi/cemeteries-memorials/usa/ and the updated map and chart at https://fleming.one-name.net/wwi/