Theodore Thomas (October 11, 1835 – January 4, 1905) was an American violinist and conductor of German birth. He is considered the first renowned American orchestral conductor and was the founder and first music director of the Chicago Symphony Orchestra (1891–1905).
Theodore Christian Friedrich Thomas was born in Esens, Germany on October 11, 1835, the son of Johann August Thomas. His mother, Sophia, was the daughter of a physician from Göttingen. He received his musical education principally from his father, who was a violinist of ability, and at the age of six years he played the violin in public concerts. His father was the town Stadtpfeifer (bandleader) who also arranged music for state occasions.
Thomas showed interest in the violin at an early age, and by age ten, he was practically the breadwinner of the family, performing at weddings, balls, and even in taverns. By 1845, Johann Thomas and his family, convinced there was a better life for a respected musician in America, packed their belongings and made the six-week journey to New York City.
In 1848, Thomas and his father joined the Navy Band, but in 1849 his father ceased to support him, and he set out on his own. Thomas soon became a regular member of several pit orchestras, including the Park, the Bowery, and the Niblo. He then toured he United States performing violin recitals. During this time Thomas served as his own manager, ticket sales, and press agent. He reached as far south as Mississippi.
Thomas returned to New York in 1850, with the intent of returning to Germany for advanced musical education; instead, he began his studies conducting in New York with Karl Eckert and Louis Antoine Jullien. He became first violin in the orchestra that accompanied Jenny Lind in that year, Henrietta Sontag in 1852, and Giulia Grisi and Giuseppe Mario in 1854. Also in 1854, at the age of nineteen, he was invited to play with the Philharmonic Society's orchestra.