His fathers first job in Kansas City, Missouri, was that of Superintendent of Forest Hill cemetery. Eventually he was a landscape architect in his own firm. S. Herbert Hare became his fathers partner. The projects of the firm of Hare & Hare include the Jackson County Courthouse, City Hall and the Municipal Courts complex, the Nelson-Atkins Museum of Art, several parks and cemeteries, and lumber baron R.A. Long's planned city of Longview, Washington. Sid Hare is buried beside his son and partner S. Herbert Hare.