Here are the original lyrics, from the sheet music at The Lester S. Levy Collection of Sheet Music. Thanks to Malcolm Douglas for the link. I have boldfaced the differences between this and the Joel Mabus version posted above.

SOMEBODY'S WAITING FOR YOU
Words, Vincent Bryan. Music, Al Gumble.
New York: Jerome H. Remick & Co., 1906.

In a cool shady nook, by the side of a brook,
Two sweet maidens were fishing alone.
They talked as they fished, and the younger girl wished
For the sweetheart she never had known.
The other girl said, with a toss of her head,
"Cheer up, dear. There's no cause to be blue.
Your love you've not met, but he'll come to you yet,
For there's somebody waiting for you."

CHORUS: Somewhere, somebody's waiting for you, you, you.
Somewhere, somebody's longing whose heart is true.
Sometime, you'll love somebody who loves you, too.
Somewhere, somebody's waiting for you, you, you.

Then a youth passing by heard her sister's reply,
And he joined in their chat, half in fun.
He said, "It is true: someone's waiting for you,
And I wish you thought I was the one!"
She paused for a while, and she said with a smile,
"I'm not sure, but you may be, it's true;
But if you are wrong, why, you won't worry long.
For there's somebody waiting for you." CHORUS