For years I wondered what that historical marker on U.S. Route 34 between Yorkville and Plano was, but never bothered to stop and read it. Because, I guess I’m like everybody else: history that’s too close, too local, isn’t as interesting as that in other, far away places.

Although it rather oddly moves Lake Michigan a hundred or so miles east, John Melish’s 1816 map showing the Northwest Territory does illustrate Illinois’ originally proposed northern boundary, even with the bottom of Lake Michigan.
And then it was too late to read it because it disappeared during one of the seemingly unending construction projects along that stretch of road.
But thanks to Linda Fellers, a resident of Crystal Lake of all places, and to the cooperation of the Illinois State Historical Society and the City of Yorkville, the marker has been replaced, this time relocated to a site on Van Emmon Road, avoiding Route 34 construction for all time.
And that gets us to how Fellers’ project to restore the missing marker is a nice compliment to our celebration of Illinois’ bicentennial this year, especially here in Kendall County. Because if the story recounted on the marker had not taken place, I’d be writing this piece in the state of Wisconsin.
The Ordinance of 1787—the Northwest Ordinance—was created to govern the region north and west of the Ohio River, and to eventually bring the region into the Union. The ordinance stipulated the territory was to be divided into not less than three, nor more than five territories that were, after they’d met minimum requirements, to then be admitted to the Union as states with all the privileges and responsibilities as the nation’s original 13 states.

Daniel Pope Cook, the young activist editor of the Illinois Intelligencer, Illinois Territory’s most popular newspaper, was a strong advocate of Illinois statehood.
Illinois became a separate territory in 1809, boasting a population of about 10,000 mostly centered in the southern third of the modern state. But the territory was growing fast, and growth really accelerated after the War of 1812. By 1817, pressure for statehood was growing as many citizens grew increasingly dissatisfied with the absolute veto power over the territorial legislature wielded by the federally appointed territorial governor.
That year, a strong bid for statehood was begun by Daniel Pope Cook (for whom Cook County is named), the fire-eating 20-year-old editor of The Western Intelligencer, one of and the best known of Illinois Territory’s few newspapers. Beginning his campaign with an editorial in the Nov. 20, 1817 Intelligencer, Cook kept up a steady drumbeat of support and agitation for statehood. By Dec. 6 of that year, the territorial house of representatives had adopted a resolution to Congress asking to be admitted as a state.
Though the Northwest Ordinance required that a territory contain at least 60,000 people before admission as a state, Cook’s uncle, Nathaniel Pope, the territorial delegate to the U.S. House of Representatives, successfully lobbied to get the minimum decreased to 40,000. As further insurance, Pope worked hard in Congress to assure any census would be managed by an Illinois resident and not a U.S. marshal as required by law.

Nathaniel Pope, Illinois Territory’s representative in Congress and Cook’s uncle, spearheaded statehood efforts in Washington, D.C. He was the father of Civil War General John Pope.
But even more importantly for Illinois’ future, Pope also lobbied to move the state’s northern boundary north to include 41 miles of Lake Michigan shoreline. As originally laid out, the state’s northern boundary would have been set at 41 degrees, 38 minutes north latitude, which would have put it even with the foot or bottom of Lake Michigan. That would have been on a line that would have placed modern Kendall County’s three northern townships—Little Rock, Bristol, and Oswego—in Wisconsin.
Rep. Pope, however, had to take many political and economic issues into account as the statehood issue moved forward. Missouri was admitted to the Union in 1817 as a slave state, so the pressure was on to admit Illinois as a free state. But that was problematical since the vast majority of the state’s population were emigrants from Kentucky, Virginia, Tennessee, and other southern slave states. So Pope, and Cook, were determined to make sure that eventually a majority of the population was anti-slavery.
Construction on the Erie Canal began in 1817, and those with a bit of foresight could see that when completed, the canal would create a commercial and passenger highway from New York City all the way to the muddy little settlement of Chicago near the foot of Lake Michigan. That would likely result in a tide of settlement from the generally anti-slavery former Middle Colonies and New England directly to northern Illinois. But with the original northern boundary set where it was, all that future northern, anti-slavery growth would end up in Wisconsin Territory, not Illinois.

The red line was the original northern boundary of Illinois proposed in statehood legislation in Washington, D.C. With Cook’s strong backing, Pope lobbied successfully to have the state line moved 61 miles north. That not only secured an economically priceless expanse of Lake Michigan shoreline, but also assured a strong anti-slavery population base in northern Illinois.
Further, the existing boundary line cut Illinois off from the water highway that was the Great Lakes. And in an era when roads were either deplorable or simply didn’t exist, water transportation was vital if a state was to thrive economically.
As a result, Pope worked hard—and successfully—to move the new state’s northern boundary north 61 miles to a line at 42 degrees 30 minutes latitude. Pope’s amendment to the statehood legislation passed on April 18, 1818, eight months before Congress officially established the State of Illinois.
The boosters of Wisconsin Territory were not amused by the great land grab Pope engineered, and, in fact, unsuccessfully tried to overturn it for years. But the line remained where Pope—with the constant journalistic encouragement and boosterism of Cook—set it. As a result, Illinois gained 14 entire counties, including modern Cook and the City of Chicago that is, and has been, Illinois’ economic engine for the past two centuries—no matter how much us downstaters would like the facts to be different.
And, it turns out, that’s what that historical marker placed along Route 34 between Plano and Yorkville back on April 7, 1965 and which disappeared some years ago was all about. Thanks to Linda Fellers, though, the missing marker, with the story of why you’re reading its text in Illinois instead of Wisconsin, has been resuscitated and emplaced just off Ill. Route 47 at 102 E. Van Emmon Street at the Van Emmon Activity Center, almost exactly on that line of 41 degrees, 38 minutes north latitude.
The newly installed marker is a tangible reminder of those days when Illinois statehood was in flux and under discussion, and is especially relevant now as we look forward to celebrating Illinois 200th birthday on Statehood Day this coming Dec. 3.
Why doesn’t the Illinois-Wisconsin boundary follow 42°30″ exactly? Near Dubuque it is about a mile north, and in Lake Michigan it is about a mile south. The pivot point is near Oneco, Illinois.
I don’t know. It could simply be the surveyors’ error. Kendall County is supposed to be a square of nine townships, 324 square miles, but due to surveyors’ errors along the western boundary, we lost land to DeKalb County. Kendall, in reality, is only 317.9 square miles in area.