Report for Tree Point Lightstation (Alaska) - 1919

District: 16th
Inspector: Various
Location: On the easterly side of the southerly entrance to Revillegigedo Channel.
Date of Report: 04/25/1919
Latitude: 54° 48' 07"
Longitude: 130° 55' 57"
Site: Public loands set aside by Executive Order
Date of Reservation: 01/06/1901
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site: 679 acres
Area Inclosed: None
Character of Soil:
Distance of tower from Nearest High-Water Mark: 80 feet
Inclosures to Premises / Type of Fence: None
Wharf or Landing on Premises: Boat landing & incline at bay about 1200 feet SW
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: By launch, Ketchinkan, 42 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
Number of Separate Lights: 1
First Built or Established: 1903
Last Rebuilt, Repaired, or Renovated: Tower repaired & stiffened in 1918.
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: 86 feet.
Background of Lighthouse as Seen from Sea: Dark timber & distant hills.
Color of Tower: White with gray lantern
Color of Tower/ How Produced: Paint
Tower Connection: Detached tower rises from center of fog signal building.
Object of Navigation: For general navigation by inside passage being point of departure entering or leaving Revillagigedo Channel.
Building Materials: Wood, shingled
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: 16" x 18"
Number of Windows and Size of Sash: 4, 20" x 22"
Number of Doors: 3
Kind of Foundation and Depth Below Surface:
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks: At the rear of the tower (easterly) a knoll rises to the height of the tower at a distance of about 80 feet.
Lantern and Fixtures
Order of Lantern: 3rd
Shape of Lantern: Polygonal
Diameter to Glass:
Diameter in the Clear:
Number of Sides: 10
Type of Bars: Vertical
Thickness of Bars:
Height Glazed: 5'9"
Number of Plates in Height: 1
Number of Plates Each Side: 1
Thickness of Plates: 7/16"
Size of Plates: 2'7.5" x 5'8.5"
Number of Storm Panes:
Unglazed Side of Lantern: None.
What Bearings:
Construction Material Lantern: Cast iron, bronze & glass, shheet iron lining.
Construction Material Roof / Cowl: Cast iron with zinc lining.
Ventilator / Cowl: Cast iron.
Lightning Spindle: Brass with platinum tip screwed to ball.
Description of Lightning Rod:
Balustrade: Iron pipe balcony rail around lantern gallery, floor covered with canvas.
Lantern Doors: 1 hung on three hinges & closing against rubber strip; bolted top & bottom.
Floor of Lantern: Wood.
Watchroom Doors: Ordinary panel door with usual hinges & lock.
Parapet Diameter:
Location / Number: In parapet of lantern.
Ladders / Cleaning Arrangement: Portable wooden ladder.
Curtain Hooks / Hanger: Curtains hung on Hartsforn sprint rollers.

How is Watchroom Fitted: No fittings
How is Relief Called: Telephone
Where is Call System Led: Fog signal building to each dwelling.
Illuminating Apparatus
Kind of Apparatus: 3.5 hours.
Intensity in Candles: White, 13,000; red, 4,000 cp
Name of Maker: Henry Lapants
Year Made: Unknown
Marks and Number: HL/326
Order of Apparatus: 4th
Inside Diameter: 19 11/16"
Light Characteristic:
Time of Revolution: 1 minute
Flash Interval: 5 sec.
Duration of Flash: 1 second
Arc of Each Fixed Part:
Number of Panels: 10
Number of Flash Panels: 10
Arc of Each: 36 degrees
Number of Elements in Central Drum: 3
Number of Prisms Above Center Drum: 6
Number of Prisms Below Center Drum: 3
Does Apparatus Revolve?: True
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced:
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal: Hollow cast iron post bolted to a floor plate.
Service Table:
Draft Tube Description: Copper 6" fitted with damper carried on spider at top of lens, which sopports connecting tube.
Revolving Machinery:
Standby and Description:
Chariot Float or Balls: Balls
Chariot Description:
Length of Drop Tube: 50 feet
Clock Weight: 27 lbs.
Length of Winding Time: 3.5 hours.
Drive During Rewind: No.
Machinery Protection: Glass case.
Regulated: Fan governor.
Lens Protection: Yes, lens cover of cotton.
How Color is Produced: Red sector of ruby glass.
Red Sectors Description: Red sector between 318 degrees and 327 degrees.
Where Color Attached: To the inside of the lantern.
Form of Colored Glass:
Lamp Description: 4th order IOV
Type of Illuminant: Kerosene
Number of Spare Lamps: 1
Number of Spare Burners:
Candle Power: 600 cp

Clock Cord Description
Revolving Cord: Clock cord.
Size of Clock Cord: 3/16"
Length of Clock Cord: 60 feet
How Led: Over 2 sleves
Diameter and Length of Clock Drum: 3 11/16" x 5 7/16"

Chariot Balls
Balls Description: Semicircular grooves
Cage to Separate Balls: True
Number of Balls: 23
Diameter of Balls: 5/16"

Vapor Oil Lamp
Number of Wicks or Mantels: 1
Diameter of Outside Wick:
Diameter of Mantel: 35 mm
Diameter of Circum Circle:

Occulting Light
Characteristic: Flash 1 second, Eclipse 5 seconds.
Time Limit: From 1.5 to 2.5 revolutions per minute.
Eclipse Type: No.
Size and Amplitude:
Axis Rotation:
Axis Relation:
Screen Revolution:
Screen Number:
Screen Time:
Screen Form:
Screen Mounting:
Screen Order:
Screen Date:
Valve Maker:
Valve Pattern:
Closets and Store Rooms
Tower Closet Use: 2 closets with lockers overhead in vestibule in fog signal building, 2 lockers in office or watch room are fitted with hooks & shelves used for stowing cleaning utensils & supplies.
Oil House Description: 70 ft. & 120 ft. easterly from building, no fittings.
Oil House Inside Dimension: 8' x 11'4"
Oil House Construction Material: Concrete, iron, wood.
Oil House Capacity: 1000 cans each.
Other (Describe): 2 closets in vestibule, 2 colosts in workroom; 1 locker in lamp room wit shelves overhead.
Suitability: Dry & suitable.
Fog Signal General
Fog Signal Kind: 1st calll 6 inch siren
Time to Start: 15 minutes
How Long Will Pressure Last: 3 minutes.
Year of Manufacture:
Characteristic: 3 sec. blast, 27 sec. silent, 3 sec. blast, 27 sec. silent.
Duplication: All parts except air receiver.
Timing Device: Crosby Automatic Signal in duplicate.
If whistle, siren, or trumpet, Pressure at Which Blown: 45 lbs.
Height Above Water: 34.5 feet
Compass Direction: 237 degrees.
Location: In same building.
Distance and Direction: In same building.
Water Supply: Contained in cistern & piped to engines.
Reached from Lighthouse: In same building.
Description of Fog Signal Building: 1 story octagonal frame building on concrete foundation & concrete floors.
Pressure And Recording Gauge: American Steam Gauge & Valve Co. Boston, Mass.
Siren Signal
Siren: Cylindrical
Siren Diameter: 6"
Siren Built Date: 1903
Siren Manufacturer: 3rd Dist. Tompkinsville, NY
Siren Ports: 20, 3/32" x 2 3/4"
Siren Revolutions:
Siren Governor: Sectional ring
Siren Condition: Good.

Internal Combustion Signal
Fog Signal Kind:
Internal Combustion Kind: Horusby Akroyd Derosene oil engine
Internal Combustion Manufacturer: De La Vergne Machine Co.
Internal Combustion Date: 1903
Internal Combustion Size: 11" x 15"
Internal Combustion Horsepower: 13 HP
Internal Combustion Fuel: Kerosene
Internal Combustion Starter: By heating with torch.
Compressor Maker: Herron & Bury High service.
Compressor Seat: Same bed; geared
Compressor Machinery:
Compressor Diameter: 10"
Compressor Stroke: 8"
Compressor RPMs:
Character of Air Inlet: "
Kind of Unloader: Herron & Burry, Erie, Pa.
Diameter of Delivery Pipe: 2"

Air Receiver
Number: 1
Diameter: 40"
Height: 18'
Capacity Cubic Feet: 157
Pressure in Each: 70 lbs.
Make of Reducing Valve:
Location: About 600 ft. NE'ly from tower.
Coloring: White with brown roofs.
Construction Materials: Wood with concrete basements
Number of Rooms: 6 rooms & bath.
Number of Dwellings: 3
Heating Plant: Hot water heater (Perfect)
Number of Keepers: 1 in each dwelling
Furnished Quarters: All
NOT Furnished Quarters: None
Outhouses: Barn with 3 stalls connected with shop; hay loft.
Outhouse Coloring: White with brown roof.
Paths and Walks: Concrete walks around dwellings & to tramway.
Area Inclosed:
Area of Garden:
Area Timber or Shrubbery:
Cultivation Area Available: 2 acres
Area Cultivated: 2 acres.
Character of Surroundings: Decayed begetation, tundra overlying rock; swamp, timber.
Stove, Maker: Bridge Beech Co.
Stove, Size: 37" x 30"
Sink, Maker: Not known
Sink, Size: 20" x 30"
Pump, Maker: None.
Pump, Size:
How Procured: Obtained from small creek & piped by gravity.
Quality: Good in spring during heavy rains, bad in summer.
Quantity: Supply short at times in summer
Injury Possible: No.
Purity Precaution: Water passas through filter cestern before entering main cistern.
Tank Capacity: 23,000 gals on top of hill back of light.
Tank Material: Concrete.
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket: Gravity
What Power Used:
Distance from Dwelling: Reservoir on stream 1800 ft. cistern about 200 ft.
General Opinion: Good.
Diseases: Rheumatism
Prevalency: Winter.
Local Causes: No.
Recommended Improvements: No.
Access to Lighthouse: Landing in small bay about 1800 ft. easterly from tower. Inclined tramway from boat house to low water mark. Tramway connects boat house with keeper's dwellings & fog signal building, walkway in center of tramway.
Distance and Direction: 1800 feet easterly
Miscellaneous Remarks:
Boat #1
Boat Number: 37
Type: Launch
Length: 6'
Width: 20'
When Built: June, 1916
Date Harbored at Station: June, 1916
Sails: False
Suited to Work: Yes
Boat #2
Boat Number: 39
Type: Dinghy
Length: 4' 10"
Width: 14'
When Built: Not known
Date Harbored at Station: Feb. 1919
Sails: False
Suited to Work: Yes.
Boat #3
Boat Number: 9
Type: Whaleboat
Length: 5' 0"
Width: 16'
When Built: Not known
Date Harbored at Station: Dec. 23, 1909
Sails: False
Suited to Work: Yes

Power Boat
Engine Type: Sheffield-Marine
Horsepower: 4 HP
Engine Maker: Sheffield No. 381
Spare Coil:
Magnet: K-W Special
Propeller Diameter: 16"
Propeller Pitch: 18"

Hoisting Engines
Hoisting Engine Kind: Meitz & Weiss
Engine RPMs: 360 RPM
Engine Diameter: 7"
Engine Stroke: 8"
Engine Boiler:
Engine Maker and Date:
Serial Number: #2042
Cylinders and Size:
Horsepower: 6 HP
Fuel: Kerosene
Hoist Starter:
Hoist Miscellaneous: