Lloyd Mosser was born in 1887 in Maryland. His family moved to Kansas when he was five years old and he began attending school in Sabetha, northeastern Kansas. Lloyd attended Beloit College in Beloit, Wisconsin for a year after graduating from high school. He then spent a year away from school in Iowa before returning to Kansas to attend the University of Kansas, graduating in 1912. Mosser worked as a high school teacher, first in Newton and then in Winfield, Kansas. Shortly after moving to Winfield, Lloyd married Emma Pyle, a fellow teacher. Their first child, Russell, was born in 1917. Lloyd Mosser died in 1962.

Russell Mosser was born on November 9, 1917. After graduating valedictorian from Blue Rapids High School, he attended the University of Kansas and graduated with an AB in Economics in 1940 and a MA in 1944. During World War II, he worked in Wichita at Boeing Airplane Company as its Director of Education and Training.

After the war, Russell Mosser worked in several positions at KU. In 1947 he co-founded Centron Coroporation, Inc. with his friend, Arthur Wolf, a film production company that produced motion pictures and other media for government, education, and industry until 1981. In 1953 Mosser constructed a home in Lawrence, Kansas and became an active member of the community, including serving as a city commissioner and being active in the First United Methodist Church and on the Lawrence Presbyterian Manor Advisory Committee.

Russell Mosser married Lorene Nightengale in 1945. They had three daughters, Patricia, Janet, and Kathryn. Mosser died on April 29, 2011.

[Information from collection materials and from Russell Mosser obituary, https://warrenmcelwain.com/obituary/Russell-A-Mosser/.]