It depends on what kind of help you mean.
If you're thinking of doing anything that would involve some sort of ownership or moderation of this site, the answer is a hard no. However if you see any coding mistakes, please tell me! I'll also probably complain on Tumblr about coding problems sometimes and may ask for help, in which case you'll be more than welcome to comment suggestions. Nothing personal, I just can't have anyone else handling the technical aspect of the archive without giving them my neocities account info, and we all know why that's a bad idea.
If you're thinking about research, then absolutely! The downside to transmascs being erased in history is that finding evidence of us is frustratingly difficult at times. Sometimes the only "evidence" I can find is a citation for a website that's only accessible through the wayback machine and just says stuff without giving any evidence or a source! If you're better at digging up reliable sources, or you already have some reliable sources up your sleeve, please for the love of God send them to me and I will give you my firstborn. If you dig up more information about the people listed below, I'll marry you.
Jim McHarris: Birth year known, but not month or day. His life as a trans man has some documentation up to when he was released from prison and shunned by his community (Both for being trans), but his remaining years and death are a total mystery.
David Jans: He's mentioned in a single paragraph as a trans man in the Netherlands and was one of 54 trans men to be recorded in Netherlands in the 1600s. The article cited fails to provide a source and I know nothing else about him.