The details and current status of data requests submitted through the Data Request Help Desk page can be seen here.
The White House Nominations
Could you get data on W. Bush, Clinton, HW Bush, Reagan, Carter, Ford, Nixon, LBJ, Kennedy, Eisenhower, and Truman nominations?
Currently reviewing request. Explore: https://www.gpo.gov/fdsys/browse/collection.action?collectionCode=CPD
The response from the Office of Presidential Libraries and the Office of Federal Register points to a variety of sources. The information may be in the Public Papers of the Presidents. Those that are online are available here: https://www.gpo.gov/fdsys/browse/collection.action?collectionCode=PPP&browsePath=3&isCollapsed=false&leafLevelBrowse=false&ycord=0 For the administrations that are not available online, here's a link to the Federal Depository Library System: https://catalog.gpo.gov/fdlpdir/FDLPdir.jsp For Reagan forward, Appendix B of the Public Papers is a list of "Nominations Submitted to the Senate." For earlier nominations, a person might have to use the index in the Public Papers and look under Appointments and Nominations as a heading. Individual Presidential Libraries could probably also give information on their administrations. https://georgewbush-whitehouse.archives.gov/news/nominations/