The "Young Gentlemens and Ladies Relief Society" is organized in Nauvoo. This is the first effort to establish an auxiliary for Mormon youth, but it apparently does not last a year. A churchwide youth program would not develop for twenty-six years.
Also on this day, "Josiah Butterfield [of the First Council of Seventy] came to my house and insulted me so outrageously that I kicked him out of the house, across the yard, and into the street." Butterfield was step-father of young Maria and Sarah Lawrence for whom Joseph Smith was legal guardian. Joseph Smith would formally marry the Lawrence sisters in the fall.
[Source: Quinn, D. Michael, The Mormon Hierarchy: Origins of Power, Appendix 7: Selected Chronology of the Church of Jesus Christ of Latter-day Saints, 1830-47, http://amzn.to/origins-power]