Final answer:
The theme of Walt Whitman's 'I Hear America Singing' is the celebration of the American working class and their individual contributions to society.
Step-by-step explanation:
The theme found in Walt Whitman's poem 'I Hear America Singing' is the celebration of the American working class and their individual contributions to society. The poem depicts various occupations, such as mechanics, carpenters, boatmen, shoemakers, and others, all singing their own songs and finding joy in their work. Whitman emphasizes the dignity and importance of each individual's labor, highlighting the diversity and unity of America. This theme reflects Whitman's belief in democracy and his admiration for the people who make America great.
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