HENRY COUNTY, situated in the northwesterly part of Illinois, with Rock river on the northwest. Area, 840 square miles. Seat of justice, Cambridge. Pop. in 1840, 1,260; in 1850, 3,807. (Fanning's, 1853)
HENRY COUNTY Is situated in the north-west part of the state, a few miles from the Mississippi river, and has an area of 830 square miles. It is drained by Rock and Green rivers, and by Edwards creek, the surface is undulating, and diversified with prairies and forests ; the soil is fertile; corn, wheat, oats and pork, are the staples. It has about 750 pupils attending the public schools. The county contains extensive beds of stone coal; it is intersected by the Chicago and Rock Island railroad; the Burlington road also crosses it on the south-east corner. Organized in 1837. Capital, Cambridge. Population, about 5,500. County Judge, M.B. Potter. (Hawes' Illinois State Gazetteer...,1859)