I can confirm that it was definitely a Coates Cider ad, from the 60s or very early 70s in the UK. My mother (Somerset-born-and-raised) used to love the stuff.
I think that it was more of a jingle than a song, i.e. the only line was “Coates comes up from Somerset, where the cider apples grow”, sung at the end of the ad.
This site gives a brief history of Coates cider, and says:
Unfortunately, a Google search on “Fred Wetherley” merely returns the same site, so his greatness may well be lost to future generations.
flano1, you could always buy your friend this jug with the singing yokels on it. Can’t say much for this site’s appraisal skills, however — they claim “circa 1900” for a jug advertising a company that didn’t exist before 1924, with the lyrics of a jingle that probably didn’t exist until the 1960s!
(Perhaps you could ask for a discount if you point that out to them.)
I can still remember the tune – if your friend needed reminding of it I could probably make an mp3 and e-mail it to her. This would be me singing it, however, not the original. So, unless she’s totally stumped as to the tune, she’s better off with her own memory…
I see that the OP was at least logged in and on the site as lately as last month (January 2016) and has posted as recently as August 2015, so hopefully flano1 will see this post.
First, I’m sorry this took so long. Usually we answer this kind of query in well under an hour; this time it’s taken more than 13 years. In my defense, I wasn’t on the Dope back then.
The song We’ll All Come Up From Somerset (sometimes abbreviated as just Up From Somerset) dates back to the middle 1800s. The lyrics were written by Frederic Weatherly; the music composed by Wilfred Sanderson. The partially altered version used in the adverts was by Adge Cutler & The Wurzels. I wasn’t able to find a version of them singing the song, but there are videos of many other artists performing it available on YouTube; I prefer Benjamin Luxon.