Lyric discussion by jdog40 

All nice ideas, they sound good, but sorry to say they are wrong, want proof?

The title came from the motto for Boys Town, a community formed in 1917 by a Catholic priest named Father Edward Flanagan. Located in Omaha, Nebraska, it was a place where troubled or homeless boys could come for help. In 1941, Father Flanagan was looking at a magazine called The Messenger when he came across a drawing of a boy carrying a younger boy on his back, with the caption, "He ain't heavy Mr., he's my brother." Father Flanagan thought the image and phrase captured the spirit of Boys Town, so he got permission and commissioned a statue of the drawing with the inscription, "He ain't heavy Father, he's my brother." The statue and phrase became the logo for Boys Town.

Don't beleive me? Well you could go on the net and look it up I promise you'll find this, or you could just trust a 61 year old who happened to be alive when this stuff was going on.

goes further back than that mate. It goes back to a peasent glaswegian girl carrying her brother in victorian Scotland.

Actually, it's older than that. Rather than paraphrase, I'll post the Wikipedia history:

"In 1884, James Wells, Moderator of the United Free Church of Scotland, in his book The Parables of Jesus tells the story of a little girl carrying a big baby boy. Seeing her struggling, someone asked if she wasn't tired. With surprise she replied, "No, he's not heavy; he's my brother."

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