Jun 3 2010 Notes from the Rare Book Room Posted byDonna HirstJune 3, 2010Posted inHardin Library Staff, Notes from the Rare Book Room, Rare Book Room Since 1971 EDWIN HOLTUM has worked for the Hardin Library for the Health Sciences, the University of Iowa Libraries and as Curator of the John Martin Rare Book Room. He retires June 30, 2010. Ed Holtum’s retirement party is 3:00-4:30 Wednesday, June 30, 2010 in the 1st floor Staff Lounge of the Main Library. You are invited to help Ed celebrate.