Ian Davies now runs the Cuckoos Nest - Chaucer's on Sunday's (probably takes a break over summer. He is also running other concerts. Details can be found on Northern Journey OnlineHome Counties is a good festival in July. However, Goderich isn't too far for a great celtic festival the weekend after the August long weekend, also Millrace is in Cambridge, Ontario and that is a good festival, too (Saturday of the August Long weekend.
Alistair Brown has (or did) a good folk show on Saturday mornings on one of the London stations.
London Morris Ale is on weekend of June 9.
Trust this helps.
Rana