I would vote for "The Yeomen Of England" from the operetta "Merrie England" by Edward German and Basil Hood. First performed in the Savoy Theatre in 1904.

Where are the yeomen, the yeomen of England?
In homestead and in cottage
They still dwell in England
Stained with the ruddy tan
God's air doth give a man
Free as the winds that fan
The broad breast of England

And nations to eastward
And nations to westward
As foemen may curse them
The Yeomen Of England
No other land could nurse them
But their mother-land Old England
And on her broad bosom shall they ever thrive