Keys History & Discovery Center Jacob Housman's original grave marker, broken into pieces by vandals, is now at Lignumvitae Key State Park. An important artifact from the founding of what was then Dade County is headed for public display — in the Florida Keys. The island of Indian Key, off what is now called Islamorada, was already a settlement in the 1830s. That's when shipwreck salvor Jacob Housman moved there. WLRN is committed to providing South Florida with trusted news and information. In these uncertain times, our mission is more vital than ever. Your support makes it possible. Please donate today. Thank you.