There are about 23 boxes (1067 folders) of unidentified material in the Hall Hoag collection. A lot of this material is bank slips, notes, letters with no discernible pertinence and other unmarked documents. These boxes also sometimes contain research done by Gordon Hall which could be quite interesting to researchers but is hard to organize without reading thoroughly.  When group together the material often looks like this:

However, in all of these boxes there is usually something of interest that was not easily recognizable when first encountered. Sometimes it is even a few pages within a document or a stack of documents. For example the item below is clearly from the Ad Hoc Committee Against the War in Vietnam but was in an unmarked envelop with many other unrelated items. Hopefully before this project is over there will be time to go through the unidentified material, but it is not a major priority because most of the items in the box do not add value to the collection illustrating the point that no matter how much work is done organizing material, there are always some loose ends.

Ad Hoc Committee Against The War in Vietnam (1965)