Welcome to the frustration of using WAV files. This is why I no longer use WAV but rather other lossless formats (I personally use FLAC, but it's not well supported in iTunes). And it is why I cannot recommend the use of WAV. WAV does not have standard ways of identifying the artist, album, genre, etc. Note that I say "does not have standard ways". Each software has its own method for embedding that information in WAV. What software did you use to rip them? If it was something besides iTunes, try going back to that software and convert them to another format that preserves the tags.
Sorry for the frustration.
Sorry for the frustration.