Emily Chapin applied for service in the British Air Transport Auxiliary in January of 1942 when she was 29 years old. Chapin, born in Twin Falls, Idaho was living in Rye, New York at the time of her application. Emily had a private license and 203 hours when Cochran recruited her. She traveled to England with the sixth and last group of American women. She was in service to the ATA from August 1942 through February 1944. Chapin made the same decision as Mikki Allen had and joined the WASP on her return from England. She received her WASP training in class 44-W-10.
After Chapin left the WASP she returned to the Northeast and worked as an engineer for General Precision Laboratories and the Singer Corporation. She died in 1978.