A line from 20th century American poem is "the silent work of the sky" referring to the quiet snowfall over a new grave. What's the poem?
Might you be referring to this poem?
The First Snowfall, by James Russell Lowell:
The First Snow-Fall.
I stood and watched by the window
The noiseless work of the sky,
And the sudden flurries of snow-birds,
Like brown leaves whirling by.
James Russell Lowell was an American poet during the Romantic period (1819-1891). He was one of the so-called "Fireside Poets" because his poems were popular during his time and Americans enjoyed reading them aloud to their families by their fireplaces.
He had a long and distinguished literary career and was the first editor of The Atlantic Monthly, a famous literary magazine. He lived during the Civil War and was friends with Longfellow. He was a professor at Harvard for awhile. He was appointed ambassador to Spain and England, by two separate U.S. presidents. He was an abolitionist and a reformer and lived during an interesting time in U.S. History.
You can read the entire poem online at the link below. There is a discussion of another work of his here on eNotes, which you may find helpful as well.