Carey & Son refers to the period when Mathew Carey (1760-1839) ran his publishing business with his son, Henry Charles Carey (1793-1879). Mathew began the business in the 1790s and published several important atlases, including the earliest general atlas of the United States, the American Atlas. Henry entered the firm as a junior partner in 1817 and worked alongside his father until 1822, when his father retired and Henry bought out his father’s shares. They also brought in Isaac Lea (1792-1886) as a junior partner; Lea had recently married Henry’s sister. From then, the firm was known as Carey & Lea.