Here are the words and tune to "Love In Vain" in ABC Format:

X: 14
T: Love In Vain
M: 4/4
L: 1/8
R: Shuffle Blues
A: Delta
P: Vocal Line
B: The Complete Robert Johnson, Woody Mann
K: G
D/2E/2|GG G2 Z2 GD|B B3/2 Z4|Z D/2E/2 (3GGA A G3/2|
Z4 Z2 d/2d/2d/2d/2|(3ddG dG-G2 Z2|Z G/2G/2 GG (3=FGD- D2|Z8|
Z4 Z e2 B|dd/2B/2- B/2B/2G/2G/2 B2 Z2|Z E GE (3GAG- G2|Z2 GG E2 GD-|D Z Z2 Z4|

W: And I followed her to the station, with a suitcase in my hand,
W: And I followed her to the station, with a suitcase in my hand,
W: Well, it's hard to tell, it's hard to tell, when all your love's in vain,
W: All my love's in vain.

W: When the train rolled up to the station, I looked her in the eye.
W: When the train rolled up to the station, and I looked her in the eye,
W: Well, I was lonesome I felt so lonesome, and I could not help but cry.
W: All my love's in vain.

W: And the train it left the station, with two lights on behind.
W: And the train it left the station, with two lights on behind.
W: Well, the blue light was my blues, and the red light was my mind.
W: All my love's in vain.

W: Dee-dee-oh, ooh, Willae May
W: Oh--ay, ooh, Willae May
W: Ooh---Oh, wee-o-wo
W: All my love's in vain.

Correction to my previous message: The book THE COMPLETE ROBERT JOHNSON doesn't contain the lyrics except for one or two verses per song, written in the music along with the vocal line. I was thinking of another excellent book by Woody Mann called "Blues Guitar Anthology."