There are two versions in the DT database - JOHNNY TODD and JOLLY SAILOR. Joe Offer also posted an Irish version in this thread Irish Kid's Songs. All use the same tune.

The version I've been singing for over 30 years has an extra bar in the third line, which also starts with ascending rather than descending thirds. The words also differ slightly to fit the tune.
It's so long ago that I can't say where I got either words or tune, but it was probably in a folk club rather than from a record, and I have probably folk-processed the words in the intervening years. I have since found the tune given (in the key of F) in a First Step instructional book How to play the Flageolet (penny whistle) by E H Wickham.

JOHNNY TODD

Johnny Todd, he took a notion
For to cross the ocean wide
And he left his true love behind him
Weeping on the Liverpool tide

For a week she wept for Johnny
Tore her hair and wrung her hands
Till she met with another sailor
Walking on the Liverpool sands

Say, fair maid, why are you weeping
For your Johnny gone to sea
If you come to the church tomorrow
I will kind and constant be

I will buy you sheets and blankets
You shall have a wedding ring
You shall ha-ave a silver cradle
For to rock your baby in

Johnny Todd came home from sailing
Back across the ocean wide
And he found that his fair but false one
Was another sailor's bride

So all young men who long like Johnny
'Cross the ocean for to go
Never leave your true love behind you
Marry her before you go

MIDI file: JOHNTOD2.MID

Timebase: 480

Tempo: 160 (375000 microsec/crotchet)
Key: D
TimeSig: 2/4 24 8
Name: Johnny Todd 1
Text: S:from Memory - mid '60s
Start
0000 1 62 127 0479 0 62 000 0001 1 66 090 0479 0 66 000 0001 1 69 127 0719 0 69 000 0001 1 69 090 0239 0 69 000 0001 1 71 127 0479 0 71 000 0001 1 71 090 0479 0 71 000 0001 1 69 127 0479 0 69 000 0001 1 66 090 0479 0 66 000 0001 1 62 127 0479 0 62 000 0001 1 66 090 0479 0 66 000 0001 1 69 127 0719 0 69 000 0001 1 69 090 0239 0 69 000 0001 1 67 127 0479 0 67 000 0001 1 66 090 0479 0 66 000 0001 1 64 127 0959 0 64 000 0001 1 62 127 0479 0 62 000 0001 1 66 090 0479 0 66 000 0001 1 69 127 0959 0 69 000 0001 1 62 127 0719 0 62 000 0001 1 66 090 0239 0 66 000 0001 1 64 127 0479 0 64 000 0001 1 62 090 0479 0 62 000 0001 1 61 127 0479 0 61 000 0001 1 57 090 0479 0 57 000 0001 1 62 127 0479 0 62 000 0001 1 66 090 0479 0 66 000 0001 1 69 127 0719 0 69 000 0001 1 64 090 0239 0 64 000 0001 1 67 127 0479 0 67 000 0001 1 66 090 0479 0 66 000 0001 1 62 127 0959 0 62 000
End

ABC format:

X: 70
T:Johnny Todd
M:2/4
L:1/8
Q:160
S:from Memory - mid '60s
K:D
D2 F2|A3 A|B2 B2|A2 F2|
D2 F2|A3 A|G2 F2|E4 |
D2 F2|A4 |D3 F|E2 D2|C2 A,2|
D2 F2|A3 E|G2 F2|D4 ||



WassaiL! V