Rock of Ages Light (English Wikipedia)

Clifford, Mary Louise; Clifford, J. Candace (2008). Lighthouses Short & Tall (Reader's Guide). Illustrated by Tilley, J.A. Cypress Communications. p. 40. ISBN 978-0-9636412-9-8. Archived from the original on 2010-06-20. Retrieved 2008-11-01.

michiganlights.com

Michigan Lighthouse Conservancy, Rock of Ages Lighthouse, Isle Royal (sic), Michigan. Lake Superior.

mtu.edu

iri.forest.mtu.edu

"SS Cumberland". Isle Royale National Park. Retrieved 8 June 2017.

nga.mil

msi.nga.mil

Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard.

nps.gov

npgallery.nps.gov

"National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
"National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.

nps.gov

"Rock of Ages Light U.S. Coast Guard Lighthouses and Light Stations on the Great Lakes TR". National Park Service, Maritime Heritage Program, Inventory of Historic Lighthouses. Retrieved 16 January 2012.

rockofageslps.org

"Work and Research – Rock of Ages Lighthouse Preservation Society". rockofageslps.org. Retrieved 2017-08-15.

terrypepper.com

Pepper, Terry. "Database of Tower Heights". Seeing the Light. terrypepper.com. Archived from the original on 2000-09-18.
Pepper, Terry. "Database of Focal Heights". Seeing the Light. terrypepper.com. Archived from the original on 2008-08-30.
Pepper, Terry. "Database of Original Lenses". Seeing the Light. terrypepper.com. Archived from the original on 2000-09-18.
Terry Pepper, Seeing the Light, Rock of Ages Light.
Second Order Fresnel lens, Terry Pepper, Seeing the Light.

twincities.com

Kaczke, Lisa (2017-03-27). "Lake Superior lighthouse will open to the public after restoration". Twin Cities. Forum News Service. Retrieved 2017-08-15.

uscg.mil

"Historic Light Station Information and Photography: Michigan". United States Coast Guard Historian's Office. Archived from the original on 2017-05-01.

uslhs.org

Wheeler, Wayne. "Rock of Ages Light Station" (PDF). The Keeper's Log. U.S. Lighthouse Society. Archived from the original (PDF) on 2008-07-20. Retrieved 2008-05-24.

web.archive.org

"Historic Light Station Information and Photography: Michigan". United States Coast Guard Historian's Office. Archived from the original on 2017-05-01.
Pepper, Terry. "Database of Tower Heights". Seeing the Light. terrypepper.com. Archived from the original on 2000-09-18.
Pepper, Terry. "Database of Focal Heights". Seeing the Light. terrypepper.com. Archived from the original on 2008-08-30.
Pepper, Terry. "Database of Original Lenses". Seeing the Light. terrypepper.com. Archived from the original on 2000-09-18.
In 1908, a 3rd Order Fresnel lens was temporarily installed, but the lantern was designed for the 2nd Order lens, which had not yet arrived. Wobser, David, "Rock of Ages Light" Great Laker magazine (December, 2004) Archived 2008-07-20 at the Wayback Machine, Boatnerd.com
Wobser, David, Manning Memorial Light Archived 2008-12-31 at the Wayback Machine, at boatnerd.com
Lighthouse Central, Photographs, History, Directions and Way points for Robert H. Manning Memorial Light, The Ultimate Guide to West Michigan Lighthouses by Jerry Roach (Publisher: Bugs Publishing LLC - 2005). Archived 2008-06-16 at the Wayback Machine ISBN 0-9747977-0-7.
Wheeler, Wayne. "Rock of Ages Light Station" (PDF). The Keeper's Log. U.S. Lighthouse Society. Archived from the original (PDF) on 2008-07-20. Retrieved 2008-05-24.
Wobser, David, "Rock of Ages Light" Great Laker magazine (December, 2004) Archived 2008-07-20 at the Wayback Machine, Boatnerd.com.
Clifford, Mary Louise; Clifford, J. Candace (2008). Lighthouses Short & Tall (Reader's Guide). Illustrated by Tilley, J.A. Cypress Communications. p. 40. ISBN 978-0-9636412-9-8. Archived from the original on 2010-06-20. Retrieved 2008-11-01.