Conversation so far:
What happened in 1991?
CANNOTANSWER.
What were the early years?
Point of Grace was formed at Ouachita Baptist University in Arkadelphia, Arkansas.
Denise Masters, Terry Lang and Heather Floyd, who knew each other from Norman, Oklahoma.

Question: How long did they perform there?
Self-contained rewrite: How long did Arkadelphia, Arkansas. Denise Masters, Terry Lang and Heather Floyd perform at Ouachita Baptist University?