In 1961 Diane Dufva Quantic obtained Bachelor of Arts degree from Kansas State University, in 1966 she earned Master of Arts from the same university. She received her Doctor of Philosophy degree in 1971.
From 1973 till 1995 Mrs. Quantic served at Wichita State University, Wichita, KS, working as an assistant professor, then as an associate professor of English and director of Writing Program starting from 1995. Between 1986 and 1987 Mrs. Quantic was a Fulbright senior lecturer in Bulgaria. Diane Dufva Quantic was appointed president of Western Literature 1992-1993. Since 1991 she joined the staff of Kansas Humanities Council as a member of Speakers Bureau.
Diane Dufva Quantic married H. Bruce Quantic on June 18, 1966. The couple has two children: Cathryn Ruth, David Bruce.