In Joseph Smith's absence some members call for David Whitmer to assume leadership of the Church. A similar situation happened during Smith's trip to Canada in July of 1837. Accounts of these two events are difficult to sort one from another. The earlier attempt to unseat Smith may possibly have been related to his affair with Miss Fanny Alger.
[Broadhurst, Dale R., Mormon Chronology, http://olivercowdery.com/history/morchrn2.htm]