I seem to recall that the Ada Joint Program Office (AJPO) gave many of its records to the George Washington University in Washington, DC, for safekeeping, when it was disbanded a year or two ago.  I would expect that copies of the four early color coded language candidates would be included in the collection.  Professor Michael B. Feldman of GWU may be able to help you, but he is on sabbatical this year.

Tom Panfil -- Treasurer -- Baltimore SIGAda