The limits of the Gladwyne Historic District are defined as follows: Beginning at a point formed by the intersection of the center lines of Black Rock Road and Conshohocken State Road; thence, along said center line of Conshohocken State Road in a southeasterly direction, a distance of approximately 100 feet to a point on the northwesterly property line now or late of St. Christopher's Church; thence, by the same leaving the center line of Conshohocken State Road in a northeasterly direction, a distance of approximately 154 feet to a point on the southwesterly property line now or late of William H. and Gladys deH. Shinn, h/w; thence, by the same in a southeasterly direction, a distance of approximately 62 feet to a point on the center line of Youngs Ford Road; thence, by the same in a northerly direction, a distance of approximately 532 feet to a point on the northwesterly property line now or late of Philip Alburger; thence, by the same leaving the center line of Young's Ford Road in a northeasterly direction, a distance of approximately 168 feet to an angle point; thence, continuing along the northeasterly property line now or late of Philip Alburger in a southeasterly direction, a distance of approximately 202 feet to a point on the center line of Rose Glen Road; thence, by the same in a southwesterly direction, a distance of approximately 161 feet to a point on the northeasterly property line now or late of John Lovering and Varney Porter Truscott, h/w; thence, by the same leaving the center line of Rose Glen Road in a southeasterly direction, a distance of approximately 240 feet to an angle point; thence, continuing along the southeasterly property line now or late of Truscott in a southwesterly direction, a distance of approximately 173 feet to a point on the northeasterly property line now or late of James P. and Bertha M. Claypool, h/w; thence, by the same in a southeasterly direction, a distance of approximately 27 feet to an angle point; thence, continuing partially along the southeasterly property line now or late of Claypool and partially along the southeasterly property lines now or late of James O. and Dorothy M. Mason, h/w, and now or late of John A. and Eleanor F. Dolan, h/w, in a southwesterly direction, a distance of approximately 243 feet to a point on the northerly property line now or late of the Atlantic Richfield Company; thence, by the same in an easterly direction, a distance of approximately 25 feet to an angle point; thence, continuing along the southeasterly property line now or late of the Atlantic Richfield Company in a southwesterly direction, a distance of approximately 154 feet to a point on the center line of Conshohocken State Road; thence, by the same in a southeasterly direction, a distance of approximately 349 feet to a point on the southeasterly property line now or late of the Merion Square Center, Inc.; thence, by the same leaving the center line of Conshohocken State Road in a southwesterly direction, a distance of approximately 268 feet to a point; thence, in a southeasterly direction approximately 200 feet northeast of and parallel to the center line of Righters Mill Road, a distance of approximately 785 feet to a point on the center line of Barr Lane; thence, by the same in a northeasterly direction, a distance of approximately 35 feet to a point on the northeasterly property line now or late of John S. and Anna W. Carlton, h/w; thence, by the same and extension leaving the center line of Barr Lane in a southeasterly direction, a distance of approximately 258 feet to a point on the northwesterly property line now or late of the Parkway Day School; thence, by the same in a southwesterly direction, a distance of approximately 184 feet to a point on the center line of Righters Mill Road; thence, by the same in northwesterly direction, a distance of approximately 145 feet to a point on the northwesterly property line now or late of the Gladwyne Elementary School; thence, by the same leaving the center line of Righters Mill Road in a southwesterly direction, a distance of approximately 1,294 feet to a point on the center line of Merion Square Road; thence, by the same in a northwesterly direction, a distance of approximately 884 feet to a point on the center line of Youngs Ford Road; thence, by the same in a northeasterly direction, a distance of approximately 220 feet to a point on the southwesterly property line now or late of Donald E. and Constance S. Carlson, h/w; thence, partially by the same and partially by the southwesterly property line now or late of Effie Williams O'Brian MacDougall in a northwesterly direction, a distance of approximately 347 feet to an angle point; thence, continuing along the southeasterly property line now or late of MacDougall in a southwesterly direction, a distance of approximately 20 feet to an angle point; thence, continuing partially along the southwesterly property line now or late of MacDougall and partially along the southwesterly property lines now or late of Robert and Ellen Weiss, h/w, and now or late of Richard B. and Ellen A. Worley, h/w, in a northwesterly direction, a distance of approximately 538 feet to a point in the center line of Black Rock Road; thence, by the same in a northeasterly direction, a distance of approximately 310 feet to a point; thence, in a northwesterly direction at right angles to the center line of Black Rock Road, a distance of approximately 150 feet to an angle point; thence, in a northeasterly direction approximately 150 feet distant from and parallel to the center line of Black Rock Road, a distance of approximately 520 feet to an angle point; thence, in a southeasterly direction at right angles to the center of Black Rock Road, a distance of approximately 150 feet to the center line of Black Rock Road; thence, by the same in a northeasterly direction, a distance of approximately 812 feet to the first mentioned point and place of beginning (containing in area 2,751,333 square feet, or 63.2 acres, more or less).