The term 'On the Susquehanna' refers to the city of Harrisburg, Pennsylvania, which is located on the Susquehanna River. Harrisburg is the capital of Pennsylvania and is the tenth most populous city in the state. It is known for its rich history, vibrant culture, and diverse population. The city is home to many attractions, including the State Capitol Building, the National Civil War Museum, and the Susquehanna Riverwalk.