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. His artistic journey began with a formative influence from his father, John Rhind, a sculptor who instilled in him an early appreciation for stone carving during his childhood years. Calder attended the Royal Academy in Edinburgh wher…