On 15 June 1879 Jeanevery and her twin sister, Jeanette, were born in the covenant in Nephi, Juab, Utah, United States to Charles Henry Sperry, age 29, and Caroline Webb, age 28. They were the 4th and 5th children, and the 2nd and 3rd of 8 daughters, born to the couple. They were already parents to: Charles Alonzo, who was born 7 December 1872; Arthur David, who was born 30 October 1874, and Emily Esther, who was born 27 August 1876. They were all born in Nephi.
Jeanevery died at home in Nephi when she was just 8 months 7 days old on 22 February 1180. She died of accidental suffocation while sleeping in the same bed as her mother and twin sister. She was buried at Nephi City Cemetery, which is located at 1240 North 400 East in Nephi, Juab, Utah, United States. Her Find a Grave ID is: 193187265
After her death her parent had 6 more children: Henry Melvin, who was born 29 January 1881; Retta, who was born 9 November 1883; Emma Della, who was born 2 April 1886; Lillian May, who was born 13 May 1888; Eva Pearl, who was born 29 June 1891; and Ruth, who was born 15 August 1894. They were all born in Nephi.