Carl Sandburg was born in Galesburg, Illinois, on January 6, 1878. Sandburg's family was very poor and Sandburg left school at the age of thirteen to work odd jobs, from laying bricks to dishwashing, to help support his family. Sandburg served eight months in Puerto Rico during the Spanish-American war. While serving, Sandburg met a student at Lombard College who inspired him to enroll after the war. After college, Sandburg moved to Milwaukee, where he worked as an advertising writer and a newspaper reporter. Sandburg established his reputation with Chicago Poems (1916), and then Cornhuskers (1918), for which he received the Pulitzer Prize in 1919.
When matched to Carl Sandburg, it means that similarities have been found between your poetic style and the themes and literary techniques typically seen in works by this famous poet. For example, you might use repetition and strong imagery the same way that Sandburg does. Recognizing these similarities is important because it gives you information about the history of your poetic style, which poets might inspire you, and what writing techniques you should try next.