Seems every six months I ask if anyone knows...

It's a English-sounding pub-like song. The chorus goes:

Dear Matilda, how I loves ya
And I've found a happy home
With a cowshed and a pig stye
Full of cows and pigs and that reminds me
How's your father? How's your mother?
I hope they're fine you know
I send no kisses, I've been eating onions
Yours sincerely, Joe

Hope it rings a bell with someone.