This collection includes three of Heschel Bullen, Jr.'s mission diaries during the years 1894-1896, two of which have overlapping dates. The bulk of the collection are the letters that Herschel sent to Millie from 1889-1896, from before they were married and a couple of years after. The miscellaneous family documents include invitations balls and galas put on by the University of Utah Alumni Assosiation and the Mormon congregations that the Bullens attended, as well as the original copy of their marriage certificate.