HistoryPorn

She married her husband a year after they both graduated college. This would have been taken while she was still in college.

Her father was a career politician, and had spent about a decade as Baltimore's mayor before Kennedy's election. That's presumably why she was there.

At any rate, she's never had a career outside politics. She did volunteer work for the Democratic party when she was raising her kids; she first ran for office around the time they were graduating from high school.