Browse Items (1 total) Spatial Coverage is exactly "378 Glen Mills Rd., Thornton, Thornbury (Delaware County, Pa. : Township)" Browse All Search Items Browse Map Browse by Headings Sort by: TitleCreatorDateDate Added Items open in a separate tab. Close the tab to return to this list. 527. Shopping. Thornton Address: 378 Glen Mills Rd., Thornbury, Pa. Date: 1955-09 Sign reads: "Quaker Friendly Food Stores"