Elaine L. Jack

Jack served as Relief Society General President until April 1997, when she was succeeded by Mary Ellen W. Smoot. Jack returned to Cardston, Alberta, and served as matron of the Cardston Alberta Temple from 1997 to 2000, while her husband served as temple president.

Jack served as the Relief Society General President from 1990 to 1997, with Chieko N. Okazaki and Aileen H. Clyde as her counselors. Under their leadership, the Relief Society developed a new statement of purpose that read, "build personal testimony, bless the individual woman, develop and exercise charity, strengthen families, enjoy a unified sisterhood, be full participants in the blessings of the priesthood." Jack launched a worldwide gospel literacy initiative in 1992. Regarding literacy, Jack said “The ability to read is more than just an earthly skill. It’s important to our eternal progression as well. If we’re going to bring souls to Christ, they must be able to understand the basic commandments and gospel principles that are in God’s word—the scriptures.” During her administration, policies shifted to include the Relief Society General Presidency more fully in general church council meetings.

At the LDS Church's April 1987 general conference, Jack was called as second counselor to Ardeth G. Kapp in the General Young Women Presidency, where she worked on producing leadership materials. She served in this capacity until the April 1990 general conference, when she was called to succeed Barbara W. Winder as the president of the Relief Society.

Jack was called by Belle S. Spafford to serve as a member of the Relief Society General Board in 1972. She served on the curriculum, general conference, and recreation and community outreach committees. She continued her service under Barbara B. Smith until they were both released in 1984.

They then moved to the Boston, Massachusetts area, where she served as president of the Relief Society of the Cambridge Branch. The Jacks then spent two years living in Sitka, Alaska while her husband was stationed there with the Public Health Service. In 1958, they moved to Salt Lake City, Utah, where Jack served as stake Relief Society president.

She met Joseph E. Jack at the University of Utah, and they married in the Cardston Alberta Temple on September 16, 1948. They are the parents of four sons. They lived in Staten Island, New York as her husband pursued advanced medical studies.

Elaine Jack (née Low; born March 22, 1928) was the twelfth Relief Society general president of the Church of Jesus Christ of Latter-day Saints (LDS Church) from 1990 to 1997. She also served in the general presidency of the church's Young Women organization from 1987 to 1990. Jack was the first Relief Society General President to be born outside of the United States.