In 1908 Venth came to Texas to direct the violin department at Kidd-Key College in Sherman. In 1911, he helped bring a moribund Dallas Symphony Orchestra back into existence and assumed the post of music director, a position he would hold until 1914; in 1913 he took a concurrent similar position with the Fort Worth Symphony Orchestra. In 1914 Venth was appointed Dean of Fine Arts at Texas Woman's College (now Texas Wesleyan University) in Fort Worth. Venth remained in Fort Worth until 1931 but served as concertmaster of the Dallas Symphony from 1927 to 1931. In 1931, he moved to San Antonio to become Dean of Fine Arts at Westmoreland College (which was renamed the University of San Antonio during Venth's tenure and is now known as Trinity University), where he taught violin, harmony, and theory.