Grouseland was the first brick house in the Indiana territory. It was built in 1804 by Samuel Thompson, a mason from Pennsylvania, using materials from England and all over the the young nation of America, as well as local lumber. A good portion of William's life was spent at Grouseland. Four of his ten children were born in the mansion, including his son, John Scott Harrison, who's son was Benjamin Harrison, the twenty-third president of the United States. It was also where he lived when he mustered a one thousand man army to fight Tecumseh and famously became Old Tippecanoe due to the resulting battle. William resigned as governor in 1812 to fight in the military against the British, and he eventually went on to become the president. He died after only a month in office from a case of pneumonia. Many historians agree that his two hour inauguration speech, which he made in a cold rain, was what led to that disease.
This early 19th century mansion is now run by the Grouseland Foundation and can visited any day of the week. Tours are conducted every day where visitors can learn about the mansion's history and the life of it's famous creator. Period furniture and other artifacts owned by the Harrisons are on display at the mansion. There is also a gift shop that sells items relating to the Harrisons, Grouseland, and Indiana history.