I have been trying to digitize Hippolytus’ “The Apostolic Tradition.” This beautiful document, to my knowledge, is not online. In this work Hippolytus presents a liturgy and a guidebook for church life. Some of what he says is still in use in the Catholic mass and Protestant services (and perhaps in the Orthodox church, though I am unfamiliar with its liturgy).
Quasten gives three older English translations of it. One by Gregory Dix is still in copyright and another by Hugh Connolly only translates a small part of the text. As of now I am trying to get a hold of Burton Scott Easton’s edition, which I believe is in the public domain. Hopefully it should get here before the end of September. Unfortunately, if Easton’s is still in copyright we may be out of luck. The original Greek text has been painstakingly (and fascinatingly) rebuilt from Greek, Latin, Coptic, Etheopian, and Arabic fragments, so translating it would be impossible for me.