First band was mates from school - we began about 2 years after we'd left sixth form.
This morphed into band #2 - 2 original members from school - me & singer / guitarist, plus drummer from a local band who'd supported us, another old school person on guitar and another guitarist we poached from a support band we liked!
...10 year ish gap...
Band #3 (current, fledgling) - the 'house band' from the open mic night I run at my local bar - 1 drummer & 1 singer / guitarist.