In 1907, she vacationed in Germany, and enjoyed her time so much that she chose to remain in Europe to continue her piano studies. For the next two years she studied music in Vienna under Franz Xaver Scharwenka, pianist to the court of Francis Joseph I of Austria, and in Berlin under Martin Krause. After returning from Europe, Hogg settled in Houston with her brother William. Although the city had a population of about 100,000, it had no museums or parks and no professional theater, music, or ballet groups. Hogg chose to teach music and continued in this vocation for the next nine years. One of her first pupils was Jacques Abram, who later became a concert pianist. By 1913, Hogg had become president of the Girls' Musical Society and was on the entertainment committee of the College Women's Club, which organized a small theater group known as the Green Mask Players. That year, she organized the Houston Symphony Orchestra. Hogg served as the vice-president of the Symphony Society when the first session of the board of directors convened. In 1917 the board of directors requested that she serve as president; she went on to serve 12 terms.