In 1865, which hatmaker created the "Boss of the Plains", the hat that came to define the American cowboy?

Colonel Pickering, Freddy Eynsford-Hill and Eliza Doolittle are characters in which musical? Col. William Prescott was one of the American leaders at which battle on June 17, 1775? Colby cheese, similar to cheddar but milder and moister, was first made in 1885 in which U.S. state? Which cold, volcanic island nation lies in the North Atlantic? The morning show "Cold Pizza" debuted in 2003 on which sports cable network? Which desert, spanning parts of Mongolia and northern China, is one of the coldest non-polar deserts in the world? Which middle name did songwriter Cole Porter share with Frank Sinatra? Cole Younger and Frank James rode with which Confederate guerrilla leader when he raided Lawrence, Kansas, in 1863?