06/04/2026
From Prairie to Metropolis - Visualizing the development of the Ridge
May 28th marked the 50th anniversary of the Ridge Historic District, one of the largest residential historic districts in the country. The Ridge Historical Society will continue a series of ongoing posts related to this milestone.
Beverly Hills and Morgan Park developed over many decades through cycles of expansion and infill, which can be seen in the accompanying video visualization. It utilizes City of Chicago data that, while imperfect in many respects, provides insights that far outweigh its limitations.
An understanding of the community's history helps interpret this visualization. This post will quote extensively from the 1976 Ridge Historic District nomination written by Robert Wagner. As noted in the district's National Register nomination, "serious residential growth in the Ridge District was a direct result of improved transportation, usually in the form of railroads." Although the Rock Island Railroad laid its main track through the lowland area in 1852, development didn’t follow until after the Panhandle railroad crossed the area and stations were added.
The trajectory accelerated when Thomas Morgan's lands were purchased by the newly formed Blue Island Land and Building Company on April 26, 1869. The company's principals "immediately embarked on a systematic program of subdivision and settlement." The investors were involved in the Rock Island Railroad and influenced the construction of the Rock Island Suburban line (or dummy line) in 1870, spurring development of Morgan Park, soon attracting Chicagoans leaving the city following the 1871 Great Chicago Fire.
Several additional shifts in transportation altered development patterns. The dummy line was pivotal in development, particularly as the spur was extended further north along its present route after 1889, which opened the stations at 91st and 95th Streets. During the 1890s and early 1900s, interurban and surface lines from Chicago also served the community along the Vincennes corridor and W. 111th Street, "further improving the transportation system and provoking ever-increasing growth." While the proliferation of the automobile eventually encouraged residents to live further from the stations, the area remained a commuter subdivision, with development radiating outward from the railroad stations.
Economic cycles are clearly visible in the data. Viewed in five-year increments, the standout patterns are the construction wave of the 1920s, the sharp decline of the Great Depression, and the robust post-WWII building recovery.
When you watch the second half of the visualization, you’ll see many south side communities grow independently, but are eventually consumed by Chicago. Anticipating the same for Morgan Park, the publishers of an 1889 book lamented, “But while we are still a suburb, before we are overshadowed by the great city fast approaching us, we take a just pride in our beautiful homes and our charming situation: and that our children may know what a haven of bliss their fathers and mothers lived in, before the great absorber had swallowed us up as an important part of her municipal corporation.”
Although the historic district primarily recognizes the built environment, the nomination notes that its earliest history is "inter-twined with that of the Pottawotamie Indians," who utilized the ridge "for hunting and encampment and as a section of the north-south trail uniting their nation."
That pathway became known as the Vincennes Trail. After the Potawatomi tribe ceded their land rights in 1833 and were forced to leave, the route became the Vincennes Road. As the nomination notes, it "continued as the main thoroughfare between the Wabash Valley and Chicago," serving as a foundation for the area's settlement.
To commemorate this history, "a boulder and bronze marker were placed in 1928 at the point where the Vincennes Trail descended the ridge," located in the center island at W. 91st Street and S. Pleasant Avenue. Placed by the Dewalt Mechlin Chapter of the Daughters of the American Revolution, this marker is one of the 62 contributing resources inventoried in the original 1976 historic district nomination.
As we celebrate the 50th anniversary of the historic district's built environment, it is important to recognize the enduring legacy of the Potawatomi, Miami, and Illinois Confederation tribes who first shaped this area.
We must also recognize that minorities were intentionally excluded from property ownership or renting in the neighborhoods that would eventually become the Ridge Historic District. Although the local Black community has deep roots dating back as far as the 1870s, they were restricted to owning or renting property east of Vincennes Avenue in Morgan Park.
Beginning around 1930 in this area, this exclusion was enforced through racially restrictive covenants. Local white residents signed legally binding agreements to prevent minority residents, particularly Blacks, from purchasing or renting property in areas west of Vincennes Avenue, with the only exception being for domestic servants to live in the home where they worked. These agreements covered single properties, several properties, or whole subdivisions. While motivations for signing varied from overt racism to community pressure and misinformation, the impact was profound and insidious.
Even after these covenants were deemed legally unenforceable, other exclusionary tactics persisted. It wasn’t until the passage of the Fair Housing Act of 1968 and subsequent banking laws, which outlawed the systemic practice of discrimination by lenders, that these entrenched barriers to homeownership were significantly dismantled.
For more information on racially restrictive covenants and other restrictive property ownership practices, visit: https://www.chicagocovenants.com/
The Prairie to the Ridge video is best viewed at high resolution on a monitor or large screen TV. Visit: https://www.youtube.com/watch?v=gNImyE3hRto
Go to Settings → Quality and select 1080p or 2160p (4K).
