Gathering bits and pieces here, I learned that their son, Cory McCool, passed away in 2009. The message board Apostolic Friends Forum also indicates Cory was a cousin of Rev. Carol McGruder.
Rev. Cory McCool also recorded an album with his wife (Intercession.) It is sad he will not be able to continue the music ministry that his parents started.
You can enjoy a track by Cory here:
Whatever the reason, I think it is interesting. Here are a sample of other records that shared the cover with this release:
Please enjoy this classic recording HERE!