Robert2, thanks, but I don't agree. "Sample p1.docx" does not display as I would expect in Word 2007. In Word 2007, I would expect the footnotes to appear at the foot of the column in which they were inserted, as in "sample2.docx" (which I created in Word 2007 for the purposes of this discussion). "Sample p1.docx" appears with footnotes not following their columns, apparently as a result of editing it in 365.

I realize that by now this is getting tiresome, BUT.... I just created a fresh, two-column document in Office 365. I inserted a footnote in the LH column and then, because the experimental text runs over to the RH column, I inserted a footnote there. Footnote 1 appears at the foot of the LH column and f.n. 2 appears at the bottom of the RH column.
This whole issue appears to be nothing more than a glitch peculiar to the document I was originally editing. I do appreciate everyone's willingness to offer assistance. Thank you very much.

Here is how sample p1.docx displays in Word 2007 on my system. Note that pagination might be different depending on which printer is default.

Attached Images

sample p1.png (25.9 KB, 15 views)

I now think my issue was a glitch peculiar to that particular doc and no other.