Unique to the Humboldt County Historical Society are over 450 collections from specific businesses, organizations and families. We also have government records and school materials covering Humboldt history from the 1850s to the present day. The items in these collections can range from business correspondence to ledger and receipt books to meeting minutes to family letters, diaries and scrapbooks. Members may access the collections for free; there is a suggested $5.00 per day research donation for non-members.