Conversation so far:
was Stephen Stills married?
Stills met and married his first wife, the singer-songwriter Veronique Sanson.
where did he meet her?
During a Manassas tour in France.
when did they divorce?
They divorced in 1979.
did they have any children?
Their son Christopher was born in 1974.
did he date anyone famous before his first marriage?
He dated actress and singer-songwriter Nancy Priddy.
who did he marry next?
His third wife is Kristen Hathaway (Kristen Stills), whom he married in 1996.

Question: did he have just one child?
Self-contained rewrite: Did Stephen Stills have one child?