Matthew Derbyshire Mann (12 Luulyo 1845 <unk> 2 Maarso 1921) wuxuu ahaa dhakhtar haweenka Maraykanka ah iyo mid ka mid ah dhakhaatiirta qalliinka ee qaliin ku sameeyay Madaxweyne William McKinley ka dib markii la toogtay
waxaa lagu qabtay garoonka Pan American Exposition September 6, 1901, magaalada Buffalo, New York, waxaa qoray anarchist Leon F. Czolgosz.