Jedediah Grant Adair was born 5 June 1859 in Washington, Washington County, Utah to George Washington Adair (1818-1897) and Miriam Jane Billingsley (1829-1912) and died 31 December 1937 Salt Lake City, Salt Lake County, Utah of unspecified causes. He married Florence Ellen Fowler (1860-1946) 1 February 1877 in St. George, Washington County, Utah. He married Julia Ann Maxwell (1860-1915) 13 February 1878 in St. George, Washington County, Utah.
Gates says: "In her home her father, Jedediah Adair, brought a piano, out at Widtsoe, Utah, which to us now is in the middle of nowhere in Southern Utah. To have a piano in a farmhouse in Widtsoe, Utah in 1908 or 1910 or 1912 was an unusual thing. So she grew up with some music in her home, and she and her sisters all played by ear. They didn’t have piano teachers out there. So she could play the hymns by ear, and she was appreciative of good music. In San Francisco she wanted to go to the symphony concerts and she attended chamber music and other recitals, the theater, and the exhibits. She also became quite a reader and read many good books. So even though she didn’t have more than two years of college at Dixie Normal, she had a thirst for some intellectual and cultural life."