MAybe this is the version:
In [Em]eighteen-hundred and forty one, I [D]put my cordroy breeches on,
I [Em]put my cordroy breeches on to work u[D]pon the [Em]railway.

{soc}
Fill i me oo me oo ray (3x)
To work upon the railway
{eoc}

In [Em]eighteen-hundred and forty-two,
I [D]left the Old World for the New,
Bad [Em]cess to the Luck that brought me through
To work [D]upon the [Em]Railway

In [Em]eighteen-hundred and forty-three,
I [D]was then I met sweet Biddy McGee,
An [Em]elegant wife she's been,
While work[D]ing on the [Em]railway.

In [Em]eighteen-hundred and forty-five,
I [D]thought myself more dead than alive
I [Em]thought myself more dead than alive
While work[D]ing on the [Em]railway

It's [Em]"Pat,do this" and "Pat, do that"
With[D]out a stocking or a cravat
Noth[Em]ing but and old straw hat
While Pat wor[D]ked on the [Em]railway.

In [Em]eighteen-hundred and forty-seven,
Sweet [D]Biddy McGee, she went to heaven
If [Em]she left one kid she left eleven,
To work [D]upon the [Em]railway.

In [Em]eighteen-hundred and forty-eight
I [D]hope to drink my whiskey straight
I [Em]hope to drink my whiskey straight
to work [D]upon the [Em]railway

{soc}
Fill i me oo me oo ray (3x)
To work upon the railway
{eoc}