What is the tone of A Barefoot Boy by James Whitcomb Riley?

The tone of the poem "A Barefoot Boy" by James Whitcomb Riley is nostalgic and sentimental. The poet reminisces about the carefree days of his childhood, spent running barefoot through the fields and woods of the countryside. He recalls the simple pleasures of fishing in the creek, swimming in the pond, and picking berries in the summertime. The poem is filled with a sense of longing for those lost days of innocence and freedom.