From The Whip-Poor-Will for Public Schools & Juvenile Classes... by W O Perkins (Boston, Oliver Ditson & Co., 1876), page 45:

THE WHIP-POOR-WILL
Words by Mrs. R. N. Turner; music by H. Millard.

1. O, sweet are the voices of twilight,
When the day has departed in peace,
When shadowy evening returning
From our labor brings healthful release.
The path that we love let us follow
By the forest so tranquil and still,
And list in the sweet hour of twilight
For the notes of the first whip-poor-will.

CHORUS: Whip-poor-will, whip-poor-will,
The notes of the first whip-poor-will—
O listen, O listen,
To the notes of the first whip-poor-will.

2. O, what are your tidings, sweet songster,
From away o'er the woodland and dell?
Why is it when twilight is falling,
That your melodies plaintively swell?
Like vesper bells ringing so softly
As they float on the still evening air,
You whisper of love and devotion
When we now to thy temple to repair.

3. Still sing to us, bird of the forest,
As we list to thy soft evening strain.
Our hearts and our thought's dearest fancies
Shall unite with thy tender refrain.
O listen! O listen! How sweetly
It is sounding far over the hill—
The first evening song of the forest
Ringing out from the sweet whip-poor-will.