Susan Lynne has a biography page on 45cat:
Susan Lynne - Biography
Susan Lynne Koskowitz was born on July 25, 1946. She was a student at Far Rockaway High School in New York when she began recording in 1962 under the name Susan Lynne while working with producers Charles Koppelman and Don Rudin. More of her singles were released through 1964, her last year in high school.
After high school, she studied at Beaver (now Arcadia) College in Pennsylvania, majoring in Spanish. She then embarked on a career in education, initially as a Spanish and ESL teacher and lastly as the Vice-Principal of Reuben Gittelman Hebrew Day School in New City, NY (under her married name of Susan Sobler). She died of cancer on January 31, 2004 at the age of 57.
While none of her singles ever made the Billboard Top 100, her 1964 recording of "Don't Drag No More" received belated recognition when it was included in the 2005 compilation "One Kiss Can Lead to Another: Girl Group Sounds Lost and Found".There is also a discography on her page:
http://www.45cat.com/artist/susan-lynne"Dont' Drag No More" was issued in '64 as Capitol 5201, backed with "In His Car" which was also written by Artie Kornfeld and included a picture sleeve. In the comments of the record details page you'll find a list of unreleased material that seem to be related, I would say it looks like Artie intended to release an album that never materialized.
SUSAN LYNN:
(Session #12145)(purchased masters) LA?,October 16,1964 (?)
53026 Queen of the drags unissued
53027 The boy in the stingray -
53028 Me sitting next to Billy -
53029 Sports car Sally
53030 I wish I had a G.T.O. unissued
53031 Silver is his Jaguar -
There is also another discography with a more recent picture over at Discogs:
https://www.discogs.com/artist/1050838-Susan-Lynne