Lyric discussion by sourfruit 

Cover art for Eli, the Barrow Boy lyrics by Decemberists, The

It was customary in the 18th century to plant pine trees in cemeteries because they are everlasting trees. So her grave is probably in the middle of a bunch of pines. I'm guessing she died from disease, such as tuberculosis, not from being murdered. And him being buried in a churchyard suggests that he is poorer, and possible orphaned, and therefore they buried him in the churchyard, not in the large cemetery.

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