The First Yerkes Prize was awarded to Grover in 1892 for his painting "Thy Will Be Done" showing a woman devastated by news she had just received, and which was exhibited at the World’s Columbian Exposition. Grover's reputation as a traditional painter and art authority was by this time firmly established in Chicago. He painted the "Harem Scene" in 1899, his contribution to the Orientalist genre. He exhibited three Venetian sketches at the St. Louis Universal Exposition, also showing at the Pennsylvania Academy and the National Academy of Design. He painted murals for the James Blackstone Memorial Library in the mid 1890s and for the Blackstone Memorial Library in Chicago in 1903, his lunettes there representing "Art", "Literature", "Science" and "Labor". His ""Ponte Vecchio", "Florence" and "Rocky Shore: Lake Garda"" were displayed at the Panama-Pacific International Exposition.