Dr. Beesley mentored Tim and Derek in some of the finer details of linguistics (as they were all sitting in the same 20x20 office in Provo UT, using DEC and Sun Sparc workstations).  And one day at the whiteboard Dr. Beesley prodded Derek and Tim to come up the transliteration schema at that moment.  Derek had been entering most of the data at that point in the project so was ready to address this.  Nevertheless, in close collaboration with Tim he came up with nearly all the characters used for the transliteration table.  Tim oversaw Derek's Arabic tasks and made the final adjustments and refinements the transliteration table.  It had no name at the time, however, Tim in a few years following the project had entered thousands of textual items using the transliteration schema and presented it, and championed it, many times as well.  It is was, therefore, appropriately named after him.   