If Rey turns out to be Luke's daughter, or in any way part of the Skywalker family, then yes, they are. Nothing's been proved yet though, just fan theories and speculation. Personally I think she must be, I mean she has crazy control over the force without any training. The Skywalkers are all strong with the Force, Kylo Ren, Luke, Anakin, and i'm sure Leia is as well, if she applied her strengths in the force. So i think Rey is a Skywalker.
SORRY FOR THE RAMBLE AhH
SORRY FOR THE RAMBLE AhH