Rosalynn

 Washington Post: Rosalynn Carter, first lady who championed mental health, dies at 96 - She sat in on Cabinet meetings of her husband, Jimmy Carter, advised on policy issues and pushed Congress to pass mental health legislation By Joe Holley and Kevin Sullivan

The Carters had been married for more than 77 years, the longest presidential marriage in U.S. history, and spent the final months of their time together at the family home in the town of Plains, in southwest Georgia. The former president decided in February to stop medical treatment for an aggressive form of melanoma skin cancer.