I happen to know that only one of the girl groups wrote their onwn song…
Georgiana Dobbins ( The Marvelettes) was assisted with writing "Please Mr.Postman with other outside songwriters…
Other than that none of the other girl groups wrote their ow songs,they wre written for them
look on the reverse side of any girl groups cd… under the song
Where it says the name/names of the songwriters
Ande