Declaring to the voters, "I want you to reclaim Delaware County from the stigma of McClurism", the 62-year-old Chadwick eventually nosed out James Dewey by only 287 votes out of 76,543 cast, according to unofficial results. He was able to pull off this narrow victory over the county machine by carrying 31 of the 49 municipalities in the congressional district, especially the larger towns of Haverford (3,919 to 3,604), Lansdowne (1,755 to 703), Ridley Township (1,363 to 1,145), Springfield (963 to 761), Swarthmore (a whopping 817 to 172), and most surprisingly, Wolfenden's Upper Darby (8,669 to 6,734).