Dakota spelling redux

I posted a bunch about Dakota orthography in connection with my adding of the hymn list from Dakota Odowan (1911). Now I'm getting ready to add an older Dakota hymnal, Dakota Odowan: Hymns in the Dakota Language with tunes, and I find that it uses a different orthography. For ś it uses x, and for ḣ it uses r. The dotted ġ is undotted g. Also, Jesus Christ is written Jesus Krist, and Messiya is Mesiya. FYI.