I posted this a little while ago, but it seems to have gone into the ether...

to my ear, there's no relation between the "Susanna's a Funicle" sort of Old Sow song and Old Molly Hare at all. My guess is that they're grouped in the Folk Index under "Rt" (= "related title") merely by the animal/fanciful theme, rather than having any true relationship of tune or words.

~ Becky in Tucson