Use archival quality acid-free sheet protectors for all of your original documents, master copies and photographs.
[Preservation]
Michigan held state census in the years of: 1854, 1864, 1874, 1884 and 1904.
[Census]
Book to consider for your personal genealogy reference library: The Family Tree Polish, Czech And Slovak Genealogy Guide: How to Trace Your Family Tree in Eastern Europe by Liza A. Alzo.
[Books]