| 11. | A skeletal tower replaced the 1950s structure, and the fog signal was discontinued.
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| 12. | The fog signal was essential in days before radar and radio.
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| 13. | In the autumn of 1912, the fog signal building was rebuilt.
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| 14. | The fog signal building is a red brick structure with a hip roof.
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| 15. | The fog signal building fell into the lake due to erosion in 1943.
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| 16. | The steam fog signal was also converted to a compressor-driven diaphone.
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| 17. | Several advances in the technology of fog signals were made during the 1850s.
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| 18. | The Coast Guard stopped fog signals from Whitefish Point in 1995.
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| 19. | The abandoned keeper's dwelling and fog signal building were demolished around the same time.
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| 20. | In 1984, the fog signal was discontinued and the fog horn building was demolished.
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