I've always liked this tune since I first heard Dolly Collins playing it on piano, on the "Snapshots" LP with her sister Shirley. I keep meaning to learn it for melodeon, and now have a further source of inspiration.
Used to listen to Anthems in Eden but don't know Snapshots. Must have a listen. On a 2 row DG, you need a low F and bottom C for this one (both non-standard). Probably playable in D if you have the low C. Or play an octave up, especially if you have a low voice (LMM).