Mary Ball, yesterday's naturalist of the day, was part of a massive family business. Her brother, Robert, gave 7,000 specimens to the Dublin University Museum, whose zoological and ethnological collections he also organized. He also helped develop the Dublin Zoo. His eldest son, also Robert, was astronomer royal of Ireland and later director of Cambridge University's observatory (he's the one in the picture). The next son, Valentine, participated in the Indian geological survey before becoming director of the Institutions of Science and Art, an umbrellas for what are now the National Museum, National Library and botanical gardens. The third son, Charles, was an eminent surgeon who pioneered antiseptic operations and the rectal valves known as "Ball's valves". That makes five Ball family members with DIB entries - a sixth, Ann (or Anne), sister of Mary and Robert senior, is twice mentioned as herself being a noted naturalist. Also, a grandson of Robert junior, Henry Barcroft, who held a chair of physiology at Queen's University, Belfast. A remarkable family.