Conversation so far:
Who are the original band members?
In 1969 Lynn Meredith, Don Montre, Dan Wright and Kerry Livgren (guitars, keyboards, synthesizers) were performing in a band called The Reasons Why.
What was the band's original name?
After changing the band's name to Saratoga, they started playing Livgren's original material with Scott Kessler playing bass and Zeke Lowe on drums.
When did the name get changed to Kansas?
CANNOTANSWER.

Question: When did some of the members leave the group?
Self-contained rewrite: When did some of the members of Kansas leave the group?