Sarah Palin is finally a mother-in-law. The Alaskan's eldest son, Track, married high school sweetheart Brittany Hanson in a scenic mountain pass near Wasilla, People reports. The 22-year-old Iraq veteran, now an Army reservist, plans to study at the University of Alaska after this year's commercial fishing season. Brittany, 21, is a nursing student at the same school. It's Palin's first experience being an official in-law. Daughter Bristol had planned to marry babydaddy Levi Johnston, but the two broke up before they walked down the aisle. (The latest on Bristol Palin? She has a new face.)