Jane Carruth Blankenship and twin sister Elizabeth Ann Blankenship were born on 20 June 1936 in Lamar, Texas to Forrest Farle Blankenship and Margaret Berry Burke.
According to the 1940 U.S. Census, the Blankenship family resided in Lamar, Texas. Forest F. Blankenship, head of household, age 26, worked as a teacher in a public school and reported an annual income of $1800. Margrett Blankenship, her mother, age 29, did not report income or employment. Jane C. Blankenship, age 3, had a twin sister, Elizabeth A. Blankenship, age 3.
Jane Blankenship married Carl Gibson on 28 May 1958 at Roane County, Tennessee.