There's a whole set of verses to this ditty, which I ran into as a college student in the early 1960's. We called the song "The Lady Mechanic" and it was not an appeal for affirmative action in any progressive sense. This is the way our verses ran:

Anon.
Collected at Bowdoin College in the early 1960's

The Lady Mechanic

G
I know a lady dressed in black,
-------------------------G7
She makes her living on her back –
-------------------C
She's a lady me-chanic,
-------------------G
She's a lady me-chanic,
---------D----------------------D7------------G
She's a lady mechanic and I love her any-how.

I know a lady dressed in red,
She makes her living going from bed to bed –
She's a registered nurse…

I know a lady dressed in green,
She makes her living pounding meat lean –
She's a lady butcher…

I know a lady dressed in brown,
She makes her living going up and down –
She's an elevator operator…

I know a lady lives on a hill,
Every night she gets her fill –
She's a blueberry picker…

Some additional verses were posted here by Steve from Mudcat (Schantieman):

I know a lady dressed in red
Makes her living lying on a bed
She's a mattress tester.
She's a mattress tester and I love that girl of mine.

I know a lady dressed in white
Makes her living working at night
She's a night nurse.
She's a night nurse and I love that girl of mine.

I know a lady wears no gown
Makes her living riding up and down
She's an elevator operator.
She's an elevator operator and I love that girl of mine.

I know a lady goes so far -
Makes her living lying in a car
She's an auto mechanic
She's an auto mechanic and I love that girl of mine.

I know a lady dressed in black
Makes her living lying on her back
She's a whore!

Cheerily,
Charley Noble