Your list has some issues though:
Master Xehanort only performed the rite for Ventus, Vanitas never got a rite, he can wield a Keyblade automatically due to his heart originally being created out of a shard of Ven's heart. -
that is exactly why I included Vanitas. His heart is made of the darkness within Ventus, so when Xehanort did the Rite of Passage for Ventus, he pretty much did it for Vanitas before he even existed.
Eraqus is correct, but Terra isn't at least regarding Sora. Sora never got a rite of succession, that has already been pointed out by Nomura before DDD.
The only reason Sora has the ability to wield a Keyblade is his connection with Ventus, while the actual Keyblade he only got due to his connection to Riku. It was specifically said that Sora is only an ordinary boy and his main power stems from the ability to connect with other hearts. -
I included Terra because he is the one at the level of Keyblade Master that partially allowed Sora to wield one. It it weren't for him to pass the power to Riku, the keyblade would not have reached him, never jumping to Sora. But I guess I should change Terra from giving the ability to Sora, to Ventus. Since it is Ventus who gives him the power. Terra only helped on the keyblade.
Roxas can of course wield due to his connection to both Sora and Ventus, he's after all more or less a hybrid of them both with an own mind (and own grown heart as we know now) on top. - see my explanation on Sora. Changing to Sora giving him the ability.
Xion only got her wielding powers by stealing memories and powers from Sora and Roxas. - once again, removing from Terra list.
Yen Sid and Mickey is also correct.