Jonathan and Martha Kent
Jonathan and Martha Kent are fictional Superman characters who were the adopted parents when they found the baby Superman in the field. They cared for "Clark Kent" until he became an adult. The Kents died from a rare tropical disease with Martha dying first. Before he died, Jonathan told the Clark should use his powers for good in earth. In other cases, Jonathan dies and Martha is still alive.
- "Kevin Costner Joins Zack Snyder's Superman Reboot". Pastemagazine.com. March 18, 2011. Retrieved August 4, 2011.