Confession time...
When Wayne Gretzky was promoting Great Western Garment jeans in the early 80s, I thought GWG stood for Great Wayne Gretzky.
I believed this for quite some time, actually. This ad from '82 shared by Retrontario brought this memory roaring back.
The Great Western Garment Company was founded in Edmonton in 1911, was acquired by Levi Strauss in 1961 and was shuttered for good in 2004.