Thought this might be of interest. I found a copy online of "Pennsylvania at the Jamestown Exposition Hampton Roads, Virginia 1907"- http://babel.hathitrust.org/cgi/pt?id=njp.32101042796571;seq=7;view=1up Attached is a brief summery of the involvement of Marianna G. Brubaker and others who contributed to the Pennsylvania Exhibit at Hampton Roads, Virginia, 1907. There are good photos w/signatures of Albert Cook Myers and Marion Dexter Learned on page 142 and 143. There are photos of the exhibit on pages 120, 126, 133 & 135. The Pennsylvania Exhibit was an amazing collection of hundreds of items including Underground Railroad evidence that would be priceless to have today. ACM & MDL did a fantastic job of putting it together. rlc