April 29,1967 pm Minstrels and Singers in the House of the Lord Sister Clara Grace was an old time prophetess who had many heavenly visions and experiences. She was nearly 75 at that time. This Holy Spirit Seminar is a classic. Billye Brim mentions this seminar often in her sermons. This was then attended by Kenneth and Gloria Copeland, Philip and Fern Halverson, Buddy and Pat Harrison, Vicki Jamison Peterson, Jeanne Wilkerson and many more in their early years of ministry.