In 1951 the Historical Society of Delaware realized that Delaware History was becoming extremely popular. In fact, they realized that due to increased demand they had actually given away all of the copies of some issues. The Society discovered they had no copies left from January 1946, March 1947, September 1947, September 1948, March 1949, and March 1950. These issues were now out of print. The Society realized this was a problem and sought to retrieve those issues.
In order to prevent the possibility of out of print copies of Delaware History, the Historical Society of Delaware issued a statement to their members. They requested that once members were done reading their Delaware History magazine to please bring it back. At the annual meeting members were urged to bring back their “spare copies.” Members were asked to be “kind in returning these issues.” People were on waiting list for their copy and the Society wanted to fulfill the orders.
Fortunately, members of the Historical Society of Delaware returned their copies of Delaware History. They were able to circulate the magazines that had previously been out of print, and also keep permanent copies in the library. By 1952 the Historical Society of Delaware was no longer asking members to bring back their spare copies of Delaware History.