Emma Seraphine West and her sister, Margaret Fletcher West, were both plural wives of Jesse Nathaniel Smith, first cousin to the Prophet Joseph Smith, Jr.

Obituary for Emma:

Emma Seraphine West Smith, one of the noted pioneers of Iron county, Utah, and of Arizona, died at her home in Snowflake, Arizona, October 15, 1910, after a brief illness. She was the daughter of Samuel West and Margaret cooper, and was born January 3, 1836, Benton county, Tennessee. Her parents joined the Church the year previous and with them she endured all the hardships of the Saints in the expulsion from Illinois.

She came to Utah in 1851, and in 1852 moved to Parowan. Here she met and married Jesse Nathaniel Smith, with whom she lived for 54 years, he having preceded her by death four years ago. She endured the privations and hardships of those early pioneer days, and cared for her family of small children in the absence of her husband, who was a missionary in Denmark.

During his second mission to Denmark, his second wife, Margaret died, leaving two small children. Since Margaret was Emma’s sister, she cared for Margaret’s children in addition to her own, and eight children of her husband’s brother, Silas, making a family of 15 small children. They moved from Parowan to Snowflake, Arizona, in 1880. In July of the same year she was chosen assistant to President Wilmirth East, of the Eastern Arizona stake Relief society and in 1883 became president.

When the stake was divided in December of 1887, she was made president of the Snowflake stake Relief society, in which office she faithfully served until August, 1905, when she was honorably released. From her childhood she has been a valiant church worker. She was the mother of nine children, 94 grandchildren and 25 great-grandchildren.

Apostle George A. Smith married Emma Seraphine West and Jesse Nathaniel Smith on May 13, 1852, at Parowan, Iron County, Utah. George A. Smith was married to Emma's older sister, Susan.

Emma and Jesse had nine children: Emma Seraphine, born August 12, 1853, Mary Josephine, January 23, 1855, Hannah Daphne, March 22, 1857, Eliza Snow, February 23, 1859, Jesse Nathaniel, Jr., May 16, 1861, Sara Elizabeth, February 2, 1866, Silas Derryfield, September 9, 1867, John Walter, June 10, 1871, and Samuel Francis, November 21, 1873.