Wikipedia:Articles for deletion/Latter-day Saint Biographical Encyclopedia
Unless I am missing something, this appears to satisfy  due to reprints (including microforms), which are an indicator of the level of circulation, the fact that it must have circulated widely because the local branches got a copy, the level of coverage and historical importance. Reprinted by eg SUP Memorial Foundation, 1955; Western Epics, 1971; Greg Kofford, 2005. Microforms by eg the one listed https://books.google.co.uk/books?id=e5qg2L6hATcC here. A search for "Saint Biographical Encyclopedia"+jenson+1901+microform does bring up some coverage in GBooks. https://books.google.co.uk/books?id=SW1bAAAAMAAJ This calls the book a standard work. (The publishers, UGA, say on their website they are '''not''' affiliated with the LDS church, even if that was an issue for a book not actually published by the church
— User:James500, 01:28, 29 July 2018 (UTC)
Stance: keep
Cited policy: WP:OBK (Wikipedia:Notability)