Oysterband

Oysterband started all the way back in 1979, but then their bandname was Fiddler's Dram and the band have since changed the name some times. The basic names in the band from the start has been John Jones, Alan Prosser and Ian Telfer.
Here you can see the bandnames and members throug time :

1979 - 80 Fiddler's Dram
Cathy LeSurf (vocals, bodhran, bells) Chris Taylor (mandola, tenor banjo, bouzouki, dulcimer, mouth harp) Alan Prosser (guitar, bass, harmonium, bones, dulcimer, chorus) Ian Telfer (fiddle, bowed psaltery, English concertina) with: John Taylor (chorus, melodeon) John Jones (chorus) Will Ward

1980 - 82 Oyster Ceilidh Band
John Jones (melodeon, piano, vocals) Cathy Lesurf (calls dances, vocals) Alan Prosser (acoustic/electric guitar, fiddle, bones, bowed psaltery, vocals) Chris Taylor (bouzouki, mandola, acoustic guitar, jaw- harp, one-row melodeon, harmonica) Ian Telfer (fiddle, viola, English concertina) Will Ward (bassoon, recorders, crumhorn, synthesizer) Chris Wood (electric bass, percussion, vocals)

1982 - 91 Oyster Band
John Jones (vocals, melodeon) Ian Kearey (bass, 12-string guitar, epinette, auto-harp) Alan Prosser (acoustic/electric guitar, synthesizer, bones) Chris Taylor (bouzouki, harmonica, bodhran, acoustic guitar) Ian Telfer (violin, viola, alto/G-tenor saxophone)
Chopper came to the band in 1989.

1992 - 2008 OysterBand
John Jones (lead vocals, melodeon) Chopper (bass, cello, tiple, vocals) Lee (drums, bodhran, percussion) Alan Prosser (guitars, banjo, vocals) Ian Telfer (fiddle, English concertina)

2008 - ?? OysterBand
John Jones (lead vocals, melodeon) Chopper (bass, cello, tiple, vocals) Dil (drums, bodhran, percussion) Alan Prosser (guitars, banjo, vocals) Ian Telfer (fiddle, English concertina)

I was very surprised to see that John Jones started in chorus, but with his voice it could not surprise anybody that he became the lead vocal in this band.
Since Big Session in the UK a few years ago, Oysterband offen has been acompanyet by James O'grady, he is kind a become the secret sixt member even if the band do no admit it.

Oysterband is :
John Jones - lead vocal - melodeon
Ian Telfer - fiddle- vocal - concertina - madolin
Allan Prosser - guitar - vocal - fiddle
Chopper - bass - guitar - vocal - cello
Dil - drums - percussion - vocal