Partial of the post about the J5 here:
http://www.soulwalking.co.uk/The%20Jacksons.html

the jackson 5 / the jacksons
The Jackson 5 originally comprised of the brothers Jackie, Tito, Jermaine, Marlon and Michael, although their earliest line-up involved Jackie, Tito and their mother.
All of the brothers showed an early interest in music, a talent picked up on by their father following him finding the children playing his old guitar without asking their permission to do so!
In the early Sixties, the three eldest children began performing together.
Jackie, Tito and Marlon were joined by their cousins, Johnnie Jackson and Ronnie Rancifer,at this stage, although they were later to be replaced by the younger family members at various stages.
Their father oversaw their developing careers, becoming the manager at a later stage, whilst the children blossomed as musicians and dancers.
Michael's dancing abilities were greatly influenced by the on stage choreographic performances of the legendary James Brown.
Jermaine had been the main lead vocalist at the time, although as the Sixties progressed, Michael became more involved as the group's main vocal lead.
The group went through a few short lived name changes ranging from Ripples and Waves plus Michael to the Jackson Brothers, until finally surfacing as the Jackson 5.

Six in this picture! Who are each in this picture?