Trying to piece together who the other nuns were played by

It's been bugging me for years and there is nowhere that really says who was who. Looking at photos, I have come up with the below based on their place in the choir in Sister Act 1

Piano (Alma): Rose Parenti
Choir mistress: Whoopi

Susan Browning, unknown, Darlene Koldenhoven

Carmen Zapata, Susan Johnson, Prudence Wright Holmes, Beth Fowler, Ruth Kobart, unknown

Ellen Albertini Dow, Edith Diaz, Kathy Nijamy, Wendy Makenna, Mary Wickes, Pat Crawford Brown

Georgia Creighton and Sherri Izzard I can't place, that's assuming the above is correct. If it makes it easier, the above with the My God lyrics:

Susan Browning (My God), unknown (to be exact), Darlene Koldenhoven

Carmen Zapata(Nothing you could do could make me untrue to my God), Susan Johnson (And I'm gonna), Prudence Wright Holmes (I gave my God my word of honour to be faithful), Beth Fowler (he's my ideal), Ruth Kobart (Nothing you could buy could make me tell a lie to my God), unknown

Ellen Albertini Dow (we are), Edith Diaz (You'd best be believing), Kathy Nijamy (as a matter of opinion I think he's tops, my opinion is), Wendy Makenna, Mary Wickes (as a matter of fact), Pat Crawford Brown (As a matter of taste)

Anyone want to help?!