Davis was born in
Newark, New Jersey to Sylvanus Davis and Polly (Carnes) Davis. After the War of 1812, lawyers from Tennessee, Kentucky, Virginia, and North Carolina, migrated to Missouri. Timothy Davis migrated to Kentucky in 1816 and passed the bar in 1817. Among the lawyers settling in Missouri was Timothy Davis, who came to
Jackson, Missouri in 1818, where he lived for 18 months, later to relocate to
St. Genevieve, Missouri. In 1818, his nephew, Greer W. Davis, who later became a prominent attorney on the Missouri circuit court, practicing law for 54 years. In 1823, he married Nancy Wilson, and together they had five children: Louis Valle, Wilson Scott, Mary Elizabeth, Emily, and Juliette. In 1827, he purchased land from August St. Marie, who had established a woodyard in 1809, and platted Ste. Marie's Landing, where he served as postmaster. He owned slaves. In 1836, he moved to
Dubuque, where he established the Davis & Crawford law firm. He continued to practice until his partner died in 1849, at which point he took Frederick E. Bissell as a law partner In 1838 he built a saw mill with George H. Walworth and Gideon Ford at the Buffalo forks on the Wapsipinicon River, the first settlement near Anamosa. == Elkader and The Elkader Flour Mill Company ==