Recently, I was called down to the library to assist with a particular patron who had a question about a collection I had processed. During our conversation, he asked me about being an archivist at HSP. What fun it must be, he posited, to roam the stacks looking at various historic wonders of the greater Philadelphia area! I told him that it certainly was an interesting job, but that my days, alas, were not filled with treasure-hunting, but rather a seemingly never-ending variety of duties that, on any given day, may or may not involve finding fun historic stuff.
When William Penn established Philadelphia in 1682, he and his settlers no doubt sailed around several islands in the southern part of the Delaware River. Today a few islands still exist in this region, such as Petty's Island and Pea Patch Island, the site of Fort Delaware. But this expansive waterway between southern Pennsylvania and southern New Jersey also once included several islands where the Delaware and Schuylkill River met – Mud Island, Little Mud Island, Hog Island, and League Island. Located just off League Island were once sandbars known as the Horseshoe Shoals.