Meg Salinger presents some of the initial results from her fascinating research into the early history of the Stacks in the USA, particularly in the Philadelphia area.
See this wonderful powerpoint presentation here Stack Presentation PowerPoint
Meg Salinger: the Early History of the Stacks in the USA
Stack Stories 
Good presentation, Meg!
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Nicely done, Meg. Thanks for delving into the Philadelphia Stack genealogy for us.
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very impressive Meg
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