1970s Hits: This 1975 David Bowie #1 was also the title of an Irene Cara hit...?

Questions

In 1863 Sir ---------- Chamberlain, British foreign secretary (Nobel 1925) born?

In 1863 Sir Austen---------- , British foreign secretary (Nobel 1925) born?

In 1869 A hotel in ---------- becomes the first to have indoor plumbing. ?

In 1869 A hotel in Boston becomes the first to have indoor---------- . ?

In 1888 ---------- O'Neill, playwright (Desire Under the Elms) (Nobel 1936) ?