Oh, I had totally forgotten about that. You're totally right. Do you have somewhere that lists the original writers cause I would like to contact them about getting on board this. Also, we should contact Taronyu and see about combining the information in the PG with his incomplete (but very comprehensive) grammar guide.
The grammar was a verbatim mirror of Wikipedia as it existed at the time, with a few formatting changes. Kwami was the author of that, taking from the sources listed on WP. (Another editor later added the chapter on history, but that was later and didn't make it into the PG.) Amawey in later editions of the PG made some changes in wording or example after I complained of plagiarism, many of which unfortunately were errors. The dictionary was the appendix of the SG, along with whichever errors crept it when it was originally posted online at suburban dictionary:
http://www.suburbandestiny.com/?p=611; to this (which involved quite a bit of formatting) he added guesses as to parts of speech, generally w/o any apparent basis.
Taronyu's done the same thing w his grammar, but is explicit about it, saying that he hasn't had time to rewrite the grammar, and so is just copying Wikipedia for now. That way the reader can trace the editing history, see the comments on changes, and knows where any errors or unwarranted assumptions may have come in. Similarly his dictionary is an updated edition of the SG appendix, but with meticulous sourcing. There are some assumptions that I think are unwarranted, such as *tswon for "fly", but he marks them as his personal derivations.
It's a bit weird to talk about credit when everyone's using pseudonyms!