(Getting sidetracked a bit, I suppose, but ... ) it might be instructive to compare the Wilmot MacDonald recording of Lumberman's Alphabet (linked previously) with a more recent rendition. This singer has a full-throated, rich tone - from the chest (?) - a la Stan Rogers - which is far removed from the lumber-camp style (and no doubt more accessible to a general audience). No criticism intended, btw - for educational purposes only: https://www.youtube.com/watch?v=0c119vXpTjI