This Ashton Irwin photo contains
fedora, felt hat, homburg, stetson, trilby, living room, living room, sitting room, front room, parlor, parlour, boater, leghorn, panama, panama hat, sailor, skimmer, and straw hat.
There might also be
dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, beaver, drawing room, parlor, and parlour.