Page:History of Iowa From the Earliest Times to the Beginning of the Twentieth Century Volume 4.djvu/253

 appointed Collector of Internal Revenue for the Third District, serving until June, 1869, when he resigned and became a member of the law firm of Shiras, Van Duzee & Henderson. Soon after he was appointed Assistant District Attorney for the Northern District of Iowa, serving two years. In the fall of 1882 he was elected on the Republican ticket Representative in Congress for the Third District. He was continuously reëlected to the close of the Nineteenth Century. At the opening of the Fifty-sixth Congress, December, 1899, Colonel Henderson was unanimously nominated by the Republicans for Speaker and elected. During the fourteen years that he had served on the floor of the House, Colonel Henderson had won the respect and esteem of his colleagues of all political parties. He is an eloquent and impressive public speaker and has exercised marked influence upon legislation. In Iowa, where he is as widely known as any man in public life, no citizen of the State has more, or warmer friends. Although representing a district that has sometimes been very close politically, he was never defeated, but served longer continuously that any other Representative in the lower House of Congress from Iowa, since it has had an existence as a State.  PARIS P. HENDERSON was born at Liberty, Union County, Indiana, January 3, 1825. He was educated in the common schools and in 1849 came to Iowa, making his home in Warren County, where he was appointed organizing sheriff, a position he held until 1859 when lie was elected on the Republican ticket to the State Senate. He served in the regular session of 1860 and at the extra war session of 1861. He then resigned and entered the military service as captain of Company G, Tenth Iowa Infantry. On the 27th of January he was promoted to the rank of lieutenant-colonel; in February, 1863, he was promoted to colonel of the regiment and served with distinction to the close of the war. Returning to Indianola he was elected treasurer of Warren County and later mayor of Indianola. JOEL E. HENDRICKS, a noted mathematician, was born in Bucks County, Pennsylvania, March 10, 1818. He early developed a love of mathematics and began to teach school at nineteen years of age. He chanced to procure Moore's Navigation and Ostrander's Astronomy and, without instruction, soon became able to work in trigonometry and calculate solar and lunar eclipses. He took up algebra while teaching and soon became master of that science without instruction. He taught mathematics two years in Neville Academy, Ohio, and then occupied a position on a Government survey in Colorado in 1861. In 1864 he located in Des Moines, Iowa and pursued his mathematical studies. In 1874 he began the publication of the Analyst, a journal of pure and applied mathematics and soon won a reputation in Europe among eminent scholars as one of the most advanced mathematicians of the day. His Analyst was taken by the