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HISTORICAL ENCYCLOPEDIA OF ILLINOIS,
first State Penitentiary (1827), and one of the first Commissioners of the Illinois & Michigan Canal. His oldest daughter (Julia Maria) became the wife of Senator Trumbull. Dr. Jayne died at Springfield, in 1867,-Dr. William (Jayne), son of the preceding, was born in Springfield, Ill., Oct. 8, 1820; educated by private tutors and at Illinois College, being a member of the class of 1847, later receiving the degree of A.M. He was one of the founders o£ the Phi Alpha Society while in that institution; graduated from the Medical Department of Missouri State University; in 1860 was elected State Senator for Sangamon County, and, the following year, was appointed by President Lincoln Governor of the Territory of Dakota, later serving as Delegate in Congress from that Territory. In 1869 he was appointed Pension Agent for Illinois, also served for four terms as Mayor of his native city, and is now Vice-President of the First National Bank, Springfield.
JEFFERSON COUNTY, a south-central county, cut off from Edwards and White Counties, in 1819, when it was separately organized, being named in honor of Thomas Jefferson. Its area is 580 square miles, and its population (1900), 28,133. The Big Muddy River, with one or two tributaries, flows through the county in a southerly direction. Along the banks of streams a variety of hardwood timber is found. The railroad facilities are advantageous. The surface is level and the soil rich, Cereals and fruit are easily produced. A fine bed of limestone (seven to fifteen feet thick) crosses the middle of the county. It has been quarried and found well adapted to building purposes. The county possesses an abundance of running water, much of which is slightly impregnated with salt. The upper coal measure underlies the entire county, but the seam is scarcely more than two feet thick at any point. The chief industry is agriculture, though lumber is manufactured to some extent. Mount Vernon, the county-seat, was incorporated as a city in 1872. Its population in 1890 was 3,233. It has several manufactories and is the seat of the Appellate Court for the Southern Judicial District of the State.
JEFFERY, Edward Turner, Railway President and Manager, b
Dundee Area History
