The Yank says this as quoted. I got a email saying they are: Sylvia Hammond, Gloria Gilbert, and Jejoshabeth (Jay) Dunston from Soul Sider. Can you say where you get this info from?
Ok, that explains the Brunswick group, but does not mean they are a part of the Columbia Group. So far we have Valerie Harp being stated a part of the group by Don Oriolo stated by ''The Yank'' earlier.
I don't think they share members. If the picture is correct on Discogs the Brunswick group shows two white girls and the Columbia group are 3 black girls.
I decided to look at my Cashbox and Record world books and found that they charted in both stating they were a studio group assembled by Don Oriolo. Neither books say their names.