LIBERTY discrepancies - Don Riddle vs. Stephen Hutcheson

Working on inputting the tunes for The Social Harp, I came to p. 74, where the tune is LIBERTY, essentially the same anonymous tune found under the same name in the Southern Harmony #68 (in 1854 anyway). But the tune authority shows a Don Riddle (1975) as arranger (or composer, if one goes by the tune authority as one's authority), an ascription that apparently only applies to the instance in the CCEH #313. This tune turns out to be a somewhat different one, in 8.7. rather than C.M., so it would seem appropriate to split the data into a liberty_southern_harmony (not liberty_american, since both are apparently anonymous American tunes) and a liberty_cceh; actually, I think I'll use the incipit numbers rather than supposed sources, so it'll be liberty_55516 and liberty_11345. That I can handle. But what I can't do is figure out what to do with Don Riddle, because when I go the the CCEH entry here, the scores do not mention Mr. Riddle, but give Stephen Hutcheson as the arranger and the date as 2000 rather than 1975. So I leave it to those in Michigan to figure out where this tune came to them from, and whether Mr. Riddle deserves credit for the arrangement, or Mr. Hutcheson, or who.

Since the database shall have changed by time you read this (as I shall have split the tune into two authorities), here are screenshots of the top of the LIBERTY page as I see it now, showing Mr. Riddle, and the bottom of the same page, showing the Southern Harmony score and the three instances as presently listed.