MS 230. Materials in the collection include correspondence, maps, photos, clippings, and memorabilia related to the 1964 Alaska (Good Friday) earthquake kept as files of Standard Oil of California, Western Operations, Inc. (SOCAL-WOI). Some were generated by geologists in the organization.

PCA 159. The collection includes excerpts of letters from Levensaler to MacKay written over a period from 1955 to 1971, recounting early mining-related history of Kennecott from his own experience and various sources. Early Alaskan miners and geologists are mentioned in the letters. Levensaler was one of the first members of the Anaconda Geological group in addition to prospecting on his own.