In a hymnbook published by the Church in Liverpool, we have a few instances where "Jehovah" is used of the Father (to the exclusion of Jesus) as well as being used for all three persons of the Godhead:
A Collection of Sacred Hymns, For The Church of Jesus Christ of Latter-day Saints, in Europe, selected by Brigham Young, Parley P. Pratt, and John Taylor (8th ed.; Liverpool: Orson Pratt, 1849)
Hymn 57:
Jehovah, God the
Father bless:
And thy own work
defend;
With mercy's
outstretched arms embrace,
And keep us to the
end.
Preserve the
creatures of thy love,
By providential care,
Conducted to the
realms above,
To sing thy goodness
there.
Jehovah, God the Son,
reveal
The brightness of thy
face;
And all thy pardoned
people fill
With plenitude of
grace.
Shine forth with all
the Deity,
Which dwells in thee
alone;
And lift us up, thy face
to see
On thy eternal
throne.
Jehovah, God the
Spirit, shine,
Father and Son to
show;
With bless ineffable,
divine,
Our ravished hearts
o'erflow
Hymn 129:
Sing to the great
Jehovah's praise;
All praise to him
belongs:
Who kindly lengthens
out our days
Demands our choices
songs
. . . .
Father thy mercies
past we own,
Thy still continued
care;
To thee presenting,
through thy Son,
Whate'er we have or
are.
Hymn 151:
This is my Son,
Jehovah cries,
The echoing voice
from glory flies,
Oh, children, hear ye
him;
Hark! 'tis his voice;
behold he cries,
Repent, believe, and
be baptized,
And wash away your
sin.
