It is presumedly to the same young lady he was referring in the verses
written probably shortly after he returned to London after his visit to
Devonshire:--

ABSENCE.

Augustus, frowning, gave command.
And Ovid left his native land;
From Julia, as an exile sent.
He long with barb'rous Goths was pent.

So fortune frown'd on me, and I was driven
From friends, from home, from Jane, and happy Devon!
And Jane, sore grieved when from me torn away;--
loved her sorrow, though I wish'd her--GAY.

That another girl there was may be gathered from the "Letter to a Young
Lady," who was not so devoted as Jane Scott, for the poet writes:

Begging you will not mock his sighing.
And keep him thus whole years a-dying!
"Whole years!"--Excuse my freely speaking.
Such tortures, why a month--a week in?
Caress, or kill him quite in one day,
Obliging thus your servant, JOHN GAY.


[Footnote 1: Risdon: _Survey of Devon_ (1811), p. 243.]

[Footnote 2: Gribble: _Memorials of Devonshire_.]