Processed by Thomas M. Reilly, Project Archivist, 1983. Updated by Gayle Ecklund,
Archives Technician, 2008 and 2013. In 2018, Bob Jaeger removed the Carl Zeidler
Papers from this collection and placed them into City Archives as CMAC 44. Frank
Zeidler’s mayoral papers were also removed and placed into City Archives as CMAC
48. The boxes were then renumbered. The SS LaSalle research materials were added as well.
From 2019-2021, Casey Lapworth reprocessed and reorganized the entire collection.
This was a result of some new materials obtained in 2019 (donated by Jeannette
Zeidler) and several hundred previously received unprocessed boxes (donated from
roughly 1983 to 2015 by Frank Zeidler and later Anita Zeidler). The unprocessed
materials, along with previously processed materials were then
appraised/reappraised and the entire collection reorganized and processed.
During this time, some previously processed materials were deaccessioned after
they were determined to be out of scope.