Between Sunset and The Sight.
Whitewing became a warrior between The New Prophecy and The Power of Three series. She had it put off so Birchfall wouldn't have to be alone in the apprentice den.
Whitewing
Brackenfur became a warrior in the book forest of secrets
Birchfall
Whitewing. it depends which whitepaw your talking about. there's a whitepaw in bluestar's prophecy whos warrior name is white-eye. then there's cloudtail's daughter whitepaw who's warrior name is whitewing.
Whitewing is a white she-cat with green eyes from the Warriors series. She is the daughter of Rainwhisker and Sorreltail, and the sister of Amberpaw and Dewpaw. Whitewing is a kind and loyal warrior of ThunderClan.
In The Sight
Birchfall and Whitewing's kits: Dovekit and Ivykit.
Cloudtail became a warrior in A Dangerous Path.
Ferrncloud became a warrior between The Darkest Hour and Firestar's Quest.
Brambleclaw became a warrior in the book "Warriors: The New Prophecy: Midnight" by Erin Hunter. In this book, Brambleclaw completes his warrior training and receives his warrior name, Brambleclaw, after proving his loyalty and skills to his Clanmates. As a warrior, Brambleclaw takes on new responsibilities and duties within ThunderClan, showcasing his growth and dedication to his Clan.
Probably between The Darkest Hour and Midnight, I think.