David and Pauline Williams from Bradninch, denied 46 charges of sexual and physical abuse between 1989 and 2004.
The couple, who used to run the now-closed Victoria Pub in Exeter, became friends Fred and Rose Wests when they lived close to their home in Cromwell Street in Gloucester.
The judge at Exeter Crown Court told the pair to expect lengthy jail terms when they're sentenced next month.
Exeter care agency rated 'inadequate' and in special measures
Bosses at Horizon Care insist change
Raw sewage spews into Plymouth suburb estate and woods
Concerns raised for public health and wildlife in Woolwell
Councillor stands under trees to stop chainsaw massacre
Emergency preservation order now in place
Three years jail for charity box thief
And he can't eat in McDonald's for eight years
Spat over whether 'inadequate' children's services are as bad as MP suggests
Exeter's Steve Race believes they are in 'last chance saloon;
Totnes market not opening in Christmas week
Most traders don't want to do it
