Andrew Jenson provides biographical summary of Ruth D. Vose and her husband Edward Sayers.
Andrew Jenson, "Names and notes about women who have been identified as probable wives of Joseph Smith," 1–2, Andrew Jenson collection, circa 1841-1942, MS 17956, Church History Library
Sayers, (Ruth Daggert Vose,) daughter of Mark and Polly Vose, was born in Watertown, Middlesex Co., Mass., Feb. 26, 1808, <and> baptized in Boston Ma in May, 1832.
Sister Ruth was Mr. Sayers married in her youth to Mr. Edward Sayers, a thoroughly practical horticulturist and florist, and though he was not a member of the Church, yet he willingly joined his fortune with her and they reached Nauvoo together some time in the year 1841;
While there the strongest affection sprang up between the Prophet Joseph and Mr. Sayers. The latter not attaching much importance to <the> theory of a future life insisted that his wife <Ruth> should be sealed to the Prophet for eternity, as he himself should only claim her in this life. She <was> accordingly the sealed to the Prophet in Emma Smith’s presence and thus were <became> numbered among the Prophets plural wives. She however remained with her husband. <though she continued to live with Mr. Sayers until his death>