Walt Whitman is the author of the poem “A Sight in Camp in the Daybreak Gray and Dim”. He was born on May 31, 1819. Walt Whitman is the author of "Leaves of Grass" and, along with Emily Dickinson, is considered one of the architects of a uniquely American poetic voice.
The tone of his poem “A Sight in Camp in the Daybreak Gray and Dim” is:
despairing.
for it presents the general idea of lack of hope. Maybe what gives best this idea are the use of the words: sleepless, hospital, stretcher and untended, because they refer to sick people just lying there waiting for their imminent death.