The village was named after the
Pecatonica River, which forms its northern border. The word
Pecatonica is an anglicization of two
Algonquian language words;
Bekaa (or
Pekaa in certain dialects), which means
slow and
niba, which means
water; forming the conjunction
Bekaaniba or
Slow Water.
Civil War records from the state of Illinois include soldiers from "Lysander", the area's common name before incorporation by
rail speculators. The
Galena and Chicago Union Railroad, later the Chicago & North Western Railroad, came through in 1853 from Chicago and continued to
Freeport, Illinois. That sparked the town to be the center of commerce for western Winnebago County. The Village of Pecatonica was incorporated in 1869, built on territory rightfully owned by Indians and previously deeded to the Reed family by US President
James K. Polk. C.W. Knowlton opened his first bank here in 1882 and built a Queen Anne Victorian house on Main Street, on the hill overlooking the business district. This house still stands, after having been restored starting in the mid-1980s. An electric
interurban line known as the
Rockford & Interurban ran from Rockford through
Winnebago, Illinois and Pecatonica to
Ridott, Illinois and on to Freeport, starting in 1902, until the line's eventual abandonment in 1930. A small depot building The village of Winnebago has also published a brochure of the trail which can be viewed online. Prior to rail traffic, this region of Northern Illinois received
stagecoach traffic. A
limestone house on Comly Road dates to this period, and there are permanent wagon wheel scars near a utility building for the 12 Mile Grove Cemetery, which is just hundreds of feet from the current corridor used by
U.S. Route 20, a major east–west route through Northern Illinois. Further west, Route 20 parallels more roads which sometime bear the phrase "
Stagecoach Trail". ==Geography==