Return of the Fog Signal Whistle Posted April 21, 2017 A piece of Old Mackinac Point Lighthouse has been missing since 1957 – a fog signal whistle. Our Museum Historian, Craig Wilson, describes the history of the signal whistle and provides a demonstration of the whistle and what guests can expect this summer. Leave a Reply Click here to cancel reply. Name (required) Mail (required) (will not be published) Website Comments (required) XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>