In 2260, Nancy was not at home when her son called from Babylon 5 and spoke with her husband. She was instead in town, running errands. David claimed that he did not know what she did with her time, but if she was happy in what she was doing, he was happy. He also stated in the same conversation that Nancy thought David "made a better diplomat than a farmer", due to problems he was having with his corn crop.
During the Earth Alliance Civil War, the Sheridans went into hiding so that they would not be targeted by Clark's forces. David was captured in the last weeks of the conflict, but Nancy remained safely hidden away with friends in Minneapolis.