Was Gandalf a Valar?

[R.R.J Tolkien]

Originally Posted by Galin

In Glorfindel I (Last Writings, The Peoples of Middle-Earth) for example, the word Maiar is footnoted by Tolkien: "That angelic order to which Gandalf originally belonged: lesser in power and authority than the Valar, but of the same nature . . ."

In the same text (I) Gandalf is referred to as Gandalf-Olorin.

I will have to read last writings and I will be ordering it soon to comment further. This is from a footnote and not the main text says something to me. This might not be cannon to me.