Introduction to Alexander Milne Calder Alexander Milne Calder (MILL-nee) was a Scottish-American sculptor born in Aberdeen, Scotland, on August 23, 1846. He is best known for his architectural sculpture of Philadelphia City Hall and both his son, Alexander Stirling Calder, and grandson, Alexander ‘sandy’ Calder, became significant sculptors in the 20th century. Calder's artistic journey began with a formative influence from his father…