September 8, 1860 – The schooner Augusta sails into Chicago, reporting that sometime during the night she had collided with the Lady Elgin on the lake. The Lady Elgin, with somewhere between 400 and 700 passengers aboard, most of them members of Milwaukee’s Irish Union Guard, is holed below the waterline when the Augusta strikes her amidships in the midst of a lake squall, and within 20 minutes she sinks. No one will ever know how many drown in the lake off Winnetka or die on the rocks just off shore. Bodies continue to wash ashore well into December, some of them almost 80 miles from the wreck. Many of those aboard the Lady Elgin are never found. Those who could be identified are returned to Milwaukee for burial, but a number of the unfortunate souls onboard the ship are buried in a mass grave In Highwood, not far from the Port Clinton lighthouse, a place that has since been lost to time.