"An American Daughter" by which playwright of "The Heidi Chronicles" opened on Broadway in 1997?

What is an alluvial deposit at the mouth of a river called? An amateur golf trophy first awarded in 1958 is named for which president? Which president, an amateur pianist, often entertained White House guests in the 1940s? Which word means both an amateur radio operator and a cut of pork? Which 1985 Larry McMurtry epic follows a cattle drive from Texas to Montana? A 1974 American folklore stamp featured the Headless Horseman and Ichabod Crane from which tale? An American hero for his ride on April 18, 1775, who was accused of cowardice in 1779 but cleared by a court-martial? Which American matriarch's nine children included Joseph Jr., born in 1915, and Edward, born in 1932?