To understand the history of Ridley Park, you must first appreciate the era of the 1870s. The country is recovering from the Civil War where Pennsylvania's industrial enterprise and natural resources were essential factors in the economic strength of the northern cause. Philadelphia is a bustling port with ships in and out bringing raw materials for the many textile mills, immigrants and disease to the city.It is understandable then, to realize why clean air & healthy conditions, free from malaria were important to the populous. In 1870, the Philadelphia, Wilmington & Baltimore railroad made the decision to construct a new route from Philadelphia to Chester. It is called the "Darby Improvement" and Isaac Hinckley, president of the railroad, with a small group of investors, plans to develop the farmlands around the new routing, much as the "Main Line" that was created by the Pennsylvania Railroad in the 1860s.

Between January and May of 1870, many farms were purchased and their namesakes continue to live on in the streets of Ridley Park. Names such as Burk, Dutton, Free, Henderson, Stewart & Ward. "The first train of passengers-cars passing on the new road was on October 19, 1872", opening for regular traffic in late November. Much had been accomplished by that time. They had erected a "commodious hotel, constructed a dam across the Little Crum Creek, and making a lake that covered twenty acres. . .the whole forming a picturesque feature of great credit to the taste and skill of the landscape gardener."   "The healthfulness of the locality, its freedom from malaria, proximity to Philadelphia, and the liberal plan pursued by the Ridley Park Association, commended the park to the public, and the result was a number of handsome houses that were erected.   In 1880, the census return gave the population of Ridley Park at 439. The railroad was, and continues today - 120 years later - to be an integral part of Ridley Park.