After her first husband, a senator, died in a 1991 plane crash, who inherited an estimated $500 million?

Which noble gas comes right after helium in the periodic table? After helping Jefferson Davis make bail in 1867, which New York Tribune publisher lost about half his readers? After her 1956 wedding, which actress and her prince drove through the streets of Monte Carlo in an open-top car? After her brother Gianni died in 1997, which woman became head designer of his fashion label? After her husband suffered a stroke in 1919, any requests to see or communicate with him had to go through which first… After her husband was killed in 1776, which Philadelphia upholsterer added flag making to her business? After her husband's death in 1968, who founded a center in Atlanta for nonviolent social change? After her husband's impeachment, Miriam "Ma" Ferguson was elected governor of which state in 1924?