Del Lienemann, Jr. is a Certified Public Accountant and a life long resident of Lincoln, Nebraska. Del and his wife Mary have two children, Anne, who is currently living in Golden, Colorado and David, who is currently living in San Francisco, California. Mr. Lienemann is a 1967 graduate of Lincoln Southeast High School and a 1972 graduate of the University of Nebraska–Lincoln with a Bachelor of Science in Business Administration.

Del Lienemann, Jr. received his Certificate of Public Accountancy from the State of Nebraska on August 7, 1974. He is currently a member of the American Institute of Certified Public Accountants and the Nebraska Society of Certified Public Accountants. Mr. Lienemann is the President and Managing Partner of D.A. Lienemann C.P.A., P.C. in Lincoln, Nebraska.

Del Lienemann, Jr. is a member of the Board of Trustees of the Ethel S. Abbott Charitable Foundation in Lincoln, Nebraska. The Ethel S. Abbott Charitable Foundation is a private foundation that makes charitable grants to organizations within the state of Nebraska.

Del Lienemann, Jr. is the Foundation Manager, Vice-President, Treasurer and a member of the Board of Trustees of the Sterns Charitable Foundation in Lincoln, Nebraska. The Sterns Charitable Foundation is a private foundation that makes charitable grants to Western Nebraska.

Del Lienemann, Jr. is the Foundation Manager, Vice-President,Treasurer and a member of the Board of Trustees of the Lienemann Charitable Foundation in Lincoln, Nebraska. The Lienemann Charitable Foundation is a private foundation that makes charitable grants to the Lincoln and Omaha areas in Nebraska.

Del Lienemann, Jr. is on the Board of Directors of the Christensen Charitable Foundation, Erck Charitable Foundation, and Joe Christensen, Inc.