Materials include a handwritten diary detailing McEwan's experiences from 1843 to 1858. Includes brief entries on his travels from Ireland to Nauvoo, Illinois, in 1843, as well as patriarchal blessings for both McEwan and his wife, Amanda, received in Nauvoo and Utah. The majority of the journal contains writings on McEwan's experience as a member of the Elk Mountain Mission from May to October 1855, including getting lost in the mountain during his journey back from the area to Provo. McEwan also documents his time as a clerk for a district court living in the territorial capital of Fillmore, Utah, from October 1855 to January 1856; and, his service in the Provo Regiment of a militia to assist others stationed in Weber Canyon during the Utah War in May 1858. Also includes records of births, marriages, temple ordinances performed, and other genealogical records dating up to 1889. Dated 1843 to 1889.