... and while we're on the subject of Chesterton:

Up my lads and lift the ledgers,
Sleep and ease are o'er.
Hear the Stars of Morning shouting:
'Two and Two are four.'
Though the creeds and realms are reeling,
Though the sophists roar,
Though we weep and pawn our watches,
Two and Two are Four.

and, for times of financial crisis and courage –

There's a run upon the Bank –
Stand away!
For the Manager's a crank and the Secretary drank,
And the Upper Tooting Bank
Turns to bay!

Stand close: there is a run
On the Bank.
Of our ship, our royal one, let the ringing
Legend run,
That she fired with every gun
Ere she sank.

…and, the specimen verse of the Post-Office Hymn ran thus:

O'er London our letters are shaken like snow,
Our wires o'er the world like thunderbolts go.
The news that may marry a maiden in Sark,
Or kill an old lady in Finsbury Park.

Chorus (with a swing of joy and energy):
Or kill an old lady in Finsbury Park.

I have a personal aversion to the 'Folk Songs with Pianoforte' style of singing, pear-shaped tones etc., but some like them, and you don't have to listen!