Josiah Gregg's diary

I have added a link today ("Who's In a Name") by Larry Blakely (Professor of Botany, Plant Physiology, Cal. State Polytechnic Univ., Pomona)which includes a brief biography and bibliography of Josiah Gregg. His biography was published in the 1941/44 2 volume Diary and Letters of Josiah Gregg by Maurice Garland Fulton. This was based upon manuscript diaries found in the possession of Gregg descendants. I have vigorously searched for the diaries, writing to most of the institutions which have Gregg archives, and to the scholars and rare book dealers most likely to know their whereabouts; and I have been unsuccessful in locating them. It's unfortunate that they have apparently been once again "lost" because they warrant further study.