The John Schmitt papers (1879-2012) contains research materials pertaining to the McChrystal family, the Tintic Mining area, and Eureka. The McChrystal family arrived in Eureka from Michigan in 1877. Their life in Eureka and Salt Lake can be followed in various newspapers online such as The Salt Lake Tribune, Eureka Reporter and others. The Tintic Mining region is still active and increasing in importance.

The Horace Sylvester Snyder family papers (1902-2010) contain the personal and professional papers of Horace Sylvester Snyder (1912-2010) a professional photographer, and his father, Horace Greeley Snyder (1873-1951), the owner of multiple mines in the American West. The collection contains biographical information and correspondence of extended family members within the Snyder and Sylvester families.