Records of the Displaced Persons Commission (RG 278)
The commission was created by Congress in 1948 to administer the selection and resettlement in the United States of certain European displaced persons. The records consist of policy and administrative files; they do not include files relating to individual displaced persons or lists of names of displaced persons. The commission went out of existence in 1952.
You can search the National Archives Catalog for entries from RG 278 or see a description in the Guide to Federal Records.