Board Thread:Speculation House/@comment-64.113.177.152-20150121173112/@comment-5217560-20150211060747

^^^To add on to what Chishio said, Monty(or was it Miles?) also explicitly stated in an Afterbuzz interview that Ozpin was decades older than the rest of the RWBY cast(including Glynda and Ironwood). Simply put, he's extremely old. Which, the RWBY crew has mentioned several times as well. Like, super old. But his appearance is a bit deceptive. Must be something in that coffee mug.

With that being said, I would not be remotely surprised if Raven was indeed, Yang's mother. I personally believe she is despite her youthful appearance.