|Out of universe information|
Sometime before the start of the Atlantis expedition, Jeannie, who was a gifted scientist like her brother, decided to raise a family instead of devoting her life to scientific study. She met Kaleb and was soon married to him. He fathered their first child together, Madison.
One day he noticed that his wife was working (through finger painting) on a theory of bridging two universes. He advised her to send the work to Professor Graeme Peel at the California Institute of Technology, where it caught the eye of the United States Air Force and Dr. Rodney McKay. Though McKay had convinced her to sign a Non-disclosure agreement, she still told her husband about what had happened, but they agreed not to say anything, through the fear of being assassinated. (SGA: "McKay and Mrs. Miller")
One year later, Kaleb heard a noise in the middle of the night and went to investigate. However, he was met by four armed, masked men who subdued him and kidnapped Jeannie. He initially blamed McKay for the kidnapping, because Devlin Medical Technologies had hacked into their e-mail accounts. Eventually, he was reunited with Jeannie. (SGA: "Miller's Crossing")