Report for Mary Island Lightstation (Alaska) - 1926

District: 17th
Inspector: Compiled from various sources.
Location: On northeasterly part of Mary Island, westerly side of Revillagigedo Channel.
Date of Report: 06/11/1926
Latitude: 55° 05' 53"
Longitude: 131° 10' 57"
Site: Public land reserved by Executive Order.
Date of Reservation:
Date of Deed: 01/06/1901
Date of Permission:
Date of Lease:
Area of the Entire Site: 227.8 acres
Area Inclosed: About 2.5 acres
Character of Soil:
Distance of tower from Nearest High-Water Mark: 70 feet
Inclosures to Premises / Type of Fence: Board & wire fence.
Wharf or Landing on Premises: Inclined tramway about 500 feet NW'ly of light.
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: By small boat from Ketchikan, about 23 miles.
Distance to Nearest Road:
Distance to Post Office:
Distance to Village:
Facilities for Public Conveyance:
Facilities for Private Conveyance:
Means Used for Support of Lantern: Tower rising through center of octagonal shaped building used as fog signal house.
Number of Separate Lights: 1
First Built or Established: 1903
Last Rebuilt, Repaired, or Renovated:
Condition at This Date:
Shape of Tower in Plan:
Form of Tower:
Height from Base to Ventilator Ball:
Height of Focal Plane Above Mean High Water: 67 feet
Background of Lighthouse as Seen from Sea: Heavlly wooded rolling hills.
Color of Tower: White with gray trimmings, black lantern;
Color of Tower/ How Produced: Paint
Tower Connection: Detached
Object of Navigation: General aid to navigating Revillagigede Channel.
Building Materials: Frame, concrete foundation.
General Description:
Wall Thickness at Base:
Wall Thickness at Parapet:
Diameter at Base:
Diameter at Parapet:
Kind of Stairway and Steps: Wooden
Number of Landings:
Size of Glass: 10" x 18"
Number of Windows and Size of Sash: 4 - 2' 0" x 3' 6"
Number of Doors: 3; 2' 8" x 6' 8", 2' 2" x 6' 0", 2' 2" x 6' 6"
Kind of Foundation and Depth Below Surface:
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks: Tower 52' high from ground to top of lantern.
Lantern and Fixtures
Order of Lantern: 4th, Standard
Shape of Lantern: Cylindrical
Diameter to Glass:
Diameter in the Clear: 7' 8"
Number of Sides:
Type of Bars: Helical
Thickness of Bars:
Height Glazed: 3' 1.25"
Number of Plates in Height: 1 & 2, alternating.
Number of Plates Each Side:
Thickness of Plates: 1/4"
Size of Plates: 2' 1.08" x 2' 1.08"
Number of Storm Panes:
Unglazed Side of Lantern:
What Bearings:
Construction Material Lantern: Iron, bronze & glass.
Construction Material Roof / Cowl: Cast iron.
Ventilator / Cowl: Cast iron.
Lightning Spindle: Brass spindle with platinum tip.
Description of Lightning Rod:
Balustrade: Wooden; floor covered with copper.
Lantern Doors: Gallery door iron, bronze hinges, lock, etc.
Floor of Lantern: Wood.
Watchroom Doors: None.
Parapet Diameter:
Location / Number: Parapet of lantern.
Ladders / Cleaning Arrangement: Wooden step ladder.
Curtain Hooks / Hanger: Brass brackets, holding spring roolers.

How is Watchroom Fitted: On 1st floor is work room, fitted with desk.
How is Relief Called: None.
Where is Call System Led:
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles: White, 6,000; Red, 1,800
Name of Maker: Chance Bros & Co.
Year Made: 1902
Marks and Number: Lighthouse Works, near Birmingham.
Order of Apparatus: 4th
Inside Diameter: 19 11/16"
Light Characteristic: Group Flashing white, 6 sec., 2 flashes, red sector from 149 degrees to 168 degrees
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part: Approx. 270 degrees
Number of Panels: 4, Door panel on shore side has a prismatic elements reflecting light through oppsite side.
Number of Flash Panels: None
Arc of Each:
Number of Elements in Central Drum: 7
Number of Prisms Above Center Drum: 6
Number of Prisms Below Center Drum: 3
Does Apparatus Revolve?: False
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced: Electric flasher.
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal: 4 iron columns with brass casing supporting circular hell plate; cast iron base & intermediate circ
Service Table: None.
Draft Tube Description: There is none.
Revolving Machinery:
Standby and Description:
Chariot Float or Balls:
Chariot Description:
Length of Drop Tube:
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection:
Lens Protection:
How Color is Produced: Ruby glass, red sector.
Red Sectors Description: 149 degrees to 168 degrees
Where Color Attached: To lantern.
Form of Colored Glass:
Lamp Description: 300 watt el. lamp
Type of Illuminant: Electric current
Number of Spare Lamps: 2 4th order oil lanmps for emergency use.
Number of Spare Burners:
Candle Power: 385 cp

Occulting Light
Characteristic: 1st flash, 0.3 sec. eclipse 0.9 sec. 2nd flash 0.3 sec., eclipse 4.5 sec.
Time Limit: Cycles of 6 seconds or 12 seconds.
Eclipse Type: Electric flasher "Reco" mounted in engine room.
Size and Amplitude:
Axis Rotation:
Axis Relation:
Screen Revolution:
Screen Number:
Screen Time:
Screen Form:
Screen Mounting:
Screen Order:
Screen Date:
Valve Maker: Reynolds El. Col. Chicage. Il.
Valve Pattern:
Reliability: Yes.
Closets and Store Rooms
Tower Closet Use: 2 lockers on 2nd floor fitted with shelves.
Oil House Description: 2 - 40 feet in rear (westerly) of tower.
Oil House Inside Dimension: 7' 6" x 11' 0"
Oil House Construction Material: Frame covered with galv. iron.
Oil House Capacity: 980 cans each. Has 2 vertical eylindrical galv. iron kerosene oil storage tanks, 220 gas. ea'py each. Kerosene delivered in returrnable iron bbls.
Other (Describe): On 1st floor workroom & battery room.
Fog Signal General
Fog Signal Kind: 3rd class daboll trumpet.
Time to Start: 11 minutes.
How Long Will Pressure Last: 4 to 5 minutes.
Year of Manufacture:
Characteristic: 3 sec. blast, 3 sec. silent, 3 sec blast, 21 sec silent.
Duplication: Engines, compressors, air tanks, water tanks, tripping device, 1 spare reed.
Timing Device: Cam wheel; cam wheel shaft geared to main pully shaft.
If whistle, siren, or trumpet, Pressure at Which Blown: 9 lbs.
Height Above Water: 41 feet
Compass Direction: 74 degrees
Location: In same building.
Distance and Direction: In same building.
Water Supply: Drainage off roof.
Reached from Lighthouse: Same building
Description of Fog Signal Building: Octagonal shaped frame building, concrete foundation, with tower for lantern, rising through center of structure.
Pressure And Recording Gauge: James P. Marsh & Co., Chicage. 2- 3" gauge valves
Internal Combustion Signal
Fog Signal Kind:
Internal Combustion Kind: Mietz & Weiss Oil
Internal Combustion Manufacturer: Mietz & Weiss
Internal Combustion Date: 1902
Internal Combustion Size: 6" diam cyl.
Internal Combustion Horsepower: 4
Internal Combustion Fuel: Mineral oil
Internal Combustion Starter: Kerosene torch
Compressor Maker: Clayton Air Comp Co.
Compressor Seat: Same bed, geard
Compressor Machinery:
Compressor Diameter: 6"
Compressor Stroke: 7"
Compressor RPMs: 130 rpm
Character of Air Inlet: 1.75"
Kind of Unloader: Globe valve 1.5"
Diameter of Delivery Pipe: 1.75"

Daboll Signal
Daboll: 3rd order
Daboll Reed:
Daboll Length: 12 feet
Daboll Breadth:
Daboll Base Thickness:
Daboll Tip Thickness:

Air Receiver
Number: 2
Diameter: 42"
Height: 7' 0"
Capacity Cubic Feet: 67
Pressure in Each:
Make of Reducing Valve: Not used.
Location: Keeper, 125 feet 225 degrees, Asst. Kpr. 125 ft. 283 degrees
Coloring: White with gray trimings, roof brown.
Construction Materials: Frame with concrete basement.
Number of Rooms: 5 living, 1 bath, 1 pantry, 2 store rooms, 2 closets & 1 tank room.
Number of Dwellings: 2
Heating Plant: A #202 hot water heater (Perfect) set in each basement.
Number of Keepers: 1 in each dweling.
Furnished Quarters: Keeper & Asst. Keeper.
NOT Furnished Quarters: None.
Outhouses: Shed attached to dwelling
Outhouse Coloring: White.
Paths and Walks: Concrete.
Area Inclosed:
Area of Garden:
Area Timber or Shrubbery:
Cultivation Area Available: None.
Area Cultivated: 300 feet
Character of Surroundings: Rocky & marshy, timbered.
Stove, Maker: Monarch Malleable Range.
Stove, Size: 37" x 27" top.
Sink, Maker:
Sink, Size: 20" x 30"
Pump, Maker: Reiss
Pump, Size: 3" hand force.
Lamps: Quarters are all electric.
How Procured: From roofs of buildings
Quality: Fair.
Quantity: Yes.
Injury Possible: No.
Purity Precaution: Filtered through soft brick walls.
Tank Capacity: 2 cisterns @ 12,000 gals each.
Tank Material: Concrete.
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket: Pump
What Power Used: Hand.
Distance from Dwelling: Beside dwelling.
General Opinion: Good.
Diseases: None
Local Causes:
Recommended Improvements:
Access to Lighthouse: Inclined tramway with car; hoisting by gasoline engine; boat house 26' x 26' at head of tramway, with turntable & tramway leading to dwelling.
Distance and Direction: About 500 feet. NW'ly
Miscellaneous Remarks: Type T
Boat #1
Boat Number: 7
Type: Whaleboat, launch
Length: 5'
Width: 23'
When Built: Purchased Oct. 20, 1912
Date Harbored at Station: Oct. 23, 1912
Sails: False
Suited to Work: Yes.
Boat #2
Boat Number: 11
Type: Dinghy
Length: 4' 8"
Width: 14'
When Built: Unknown
Date Harbored at Station: 1903
Sails: True
Suited to Work: Yes
Boat #3
Boat Number: 25
Type: Skiff
Length: 4'
Width: 14'
When Built: Unknown
Date Harbored at Station: Feb. 1923
Sails: False
Suited to Work: Yes.

Power Boat
Engine Type: Outboard, 2 cyl.
Horsepower: 10 HP
Engine Maker: Frisbie Motor Co.
Spare Coil:
Propeller Diameter:
Propeller Pitch:

Hoisting Engines
Hoisting Engine Kind: Geared Gasoline
Engine RPMs: 350
Engine Diameter: 5"
Engine Stroke: 8"
Engine Boiler:
Engine Maker and Date: Fairbanks, Morse, 1914
Serial Number: #135185
Cylinders and Size:
Horsepower: 4 HP
Fuel: Gasoline
Hoist Starter:
Hoist Miscellaneous:

General Information:
Boats on Station: In boathouse