Stephen Decatur Button (June 15, 1813, in Preston, Connecticut – January 7, 1897, in Philadelphia, Pennsylvania) was an American architect and a pioneer in the use of metal-frame construction for masonry buildings.
He apprenticed to his uncle, Connecticut carpenter Stephen Button, and became an assistant to New York City architect George Purvis.
"[3] In 1961, architectural historian Winston Weisman labeled this style "Philadelphia Functionalism," and conjectured that it may have influenced the skyscrapers of architect Louis Sullivan.
[4] Sullivan worked next-door at 243 Chestnut Street in 1874, while a draftsman in the offices of architects Frank Furness & George W. Hewitt.
Button received major commissions in Camden, including churches, schools, railroad stations, commercial buildings, and the second City Hall.