What is everyone's middle name in the pjo series?

Now that bạn mensoned it, I havent really thought about it. i read somewhere that it's
Percy Allen Jackson
Annabeth is probably Annabeth (i don't know her dad's name) Chase
Grover (no idea, timothy?! :D, like brandon. t. jackson ;)) Underwood
Ok this is realy hard i give up, i'm sorry, i tried surching in google, but the only thing i found was các câu hỏi about what their middle names are. I think that only RR knows their middle names.(but probably he hasn't thought about it either.

The answer to this câu hỏi is unknown. Only Rick Riordan knows this. but good question!

Aren't the middle names... like from the other parent? so like, since the gods don't have a middle name, neither do the demigods....?

I'm not really sure...

Rick never mentioned it so i guess they don't have one. Not everyone has one bạn know.

This câu hỏi was answered a few months cách đây via twitter. Nobody really has middle names, really, except Rachel Elizabeth Dare