Other variants/additions:

My father makes book on the corner,
My mother makes illicit gin,
My sister sells kisses to sailors,
My God, how the moneys rolls in.

My aunty's a bawdy-house keeper,
Each night as the evening grows dim,
She hangs out a little red lantern,
My God, how the money rolls in.

My uncle's a registered plumber,
His business is in holes and tin,
He'll plug up your hole for a tanner,
My God, how the money rolls in.

My cousin's a barmaid in Grimsby,
For a shilling she'll strip to the skin,
She's stripping from morning 'til midnight,
My God, how the money rolls in.

final verse:

I've lost all my cash on the horses,
I'm sick from the illicit gin,
I'm falling in love with my brother,
My God, what a state I am in.