Thomas Gold letters, 1965-1966 Contains copies of letters from Thomas Gold to numerous individuals and organisations. Also includes copies of letters from his secretary, Valerie Sorenson and from Professor E E Salpeter. The file is indexed by the names of the recipients of the letters. The letters were numbered by Gold or a secretary from 1 to 584 (there are no letters numbered 161, 228, 428 or 518. It is not known they ever existed). Although there is a label on the spine of the file stating that the letters finish on 31 December 1966, the letters actually finish on 30 December. It is not clear if this was an error on the part of the person who typed the label or if the file actually contained letters for 31 December in the past. 1 Jul 1965-30 Dec 1966