The sailorman's child
And the girl of the witch--
They can't be defiled
By touching pitch.
The sailorman's son
Had a ship for a nursery;
The other one
Was baptised by sorcery.
Although he's shipped
To the Persian Gulf, her
Body's been dipped
In burning sulphur.
Elinor Morton Wylie
http://www.poemhunter.com/poem/curious-circumstance/