Sir William Henry Perkins FRS (March 12, 1838 - July 14, 1907) was an English chemist best known for his discovery, at the age of 18, of the first aniline dye, maven. This dye could be made from coal. Perkins also founded the aniline dye industry
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Henry Knox had a brother named William. William accompanied Henry on the trip to Fort Ticonderoga to fetch the cannon for Washington's Army in the Winter of 1775-76. Henry was 25 at the time and in command of the mission. William was 19.
William Henry Harrison
William Henry Harrison, all of one month into his presidency.
William Henry seward----------he was important cause he bought Alaska 0.o
William and Mary Knox are Henry's parents.