Report for Cape Ann (Massachusetts) - 1927

District: 2nd
Inspector: C. H. Robinson, Asst. Engr
Location: On E'ly side of Thatcher Island about 3/4 mile from Cape Ann
Date of Report: 05/28/1927
Latitude: 42° 38' 21" (N tower) 13" (S tower)
Longitude: 70° 34' 31" (N tower) 32" (S tower)
Site: Granted by Commonwealth of Massachusetts
Date of Reservation:
Date of Deed:
Date of Permission: 06/12/1790
Date of Lease:
Area of the Entire Site: About 10 acres
Area Inclosed: None
Character of Soil:
Distance of tower from Nearest High-Water Mark: N tower 150'; S Tower 75'
Inclosures to Premises / Type of Fence: None
Wharf or Landing on Premises: Boatslip - no wharf
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: By boat, about 3 3/4 miles to Rockport, Mass. Post Office
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: 2 towers
Number of Separate Lights: 2; 218 yards apart bearing 186 1/4 degrees
First Built or Established: 1773
Last Rebuilt, Repaired, or Renovated: 1861
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: N tower 162'; S tower 166'
Background of Lighthouse as Seen from Sea: Fields & buildings
Color of Tower: Gray
Color of Tower/ How Produced: Granite
Tower Connection: Detached
Object of Navigation: Seacoast - general navigation
Building Materials: Granite
General Description:
Wall Thickness at Base:
Wall Thickness at Parapet:
Diameter at Base:
Diameter at Parapet:
Kind of Stairway and Steps: Iron
Number of Landings:
Size of Glass: 9 3/4" x 21 3/4"
Number of Windows and Size of Sash: 11; 46.5" x 22"; 4 panes
Number of Doors: 1 each 3' x 7'; Double door 31" x 10' 10" steel plate
Kind of Foundation and Depth Below Surface:
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks: Towers located on ledge
Lantern and Fixtures
Order of Lantern: 1st
Shape of Lantern: Polygonal
Diameter to Glass:
Diameter in the Clear:
Number of Sides: 16
Type of Bars: Vertical
Thickness of Bars: 1 1/8"
Height Glazed: 10'
Number of Plates in Height: 3
Number of Plates Each Side: 3
Thickness of Plates: 1/4"
Size of Plates: 44.5" x 27.5"; 39" x 27.5"; 30 3/4" x 27.5"
Number of Storm Panes:
Unglazed Side of Lantern: None
What Bearings:
Construction Material Lantern: Iron & bronze
Construction Material Roof / Cowl: Copper
Ventilator / Cowl: Copper
Lightning Spindle: Yes, with copper conductor down tower to sea
Description of Lightning Rod:
Balustrade: Iron
Lantern Doors: None
Floor of Lantern: Stone covered on inside with wood
Watchroom Doors: None
Parapet Diameter:
Location / Number: In parapet
Ladders / Cleaning Arrangement: Yes, iron
Curtain Hooks / Hanger: Yes, hooks screwed into stays

How is Watchroom Fitted: With telephone & closet for spare lamp etc.
How is Relief Called: Telephone
Where is Call System Led: To each Keeper's quarters
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles: 2200 each
Name of Maker: N tower - Henry LePaute; S Tower - L Sautter & Co.
Year Made: Not known
Marks and Number: None
Order of Apparatus: 1st
Inside Diameter: 6'
Light Characteristic:
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part: 360 degrees
Number of Panels: 8
Number of Flash Panels: None
Arc of Each:
Number of Elements in Central Drum: 17
Number of Prisms Above Center Drum: 13 fixed
Number of Prisms Below Center Drum: 6 fixed
Does Apparatus Revolve?: False
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced:
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal: Iron
Service Table:
Draft Tube Description: 5" brass tube leading into ventilator ball
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:
Red Sectors Description:
Where Color Attached:
Form of Colored Glass:
Lamp Description: 55 mm IOV type A
Type of Illuminant: Kerosene
Number of Spare Lamps: 2
Number of Spare Burners: 6
Candle Power: 1500 cp

Vapor Oil Lamp
Number of Wicks or Mantels: 1 55mm mantel
Diameter of Outside Wick:
Diameter of Mantel: 2"
Diameter of Circum Circle: One only
Closets and Store Rooms
Tower Closet Use: None
Oil House Description: About midway between towers
Oil House Inside Dimension: 10' 8" x 12' 8"
Oil House Construction Material: Bricks
Oil House Capacity: About 850 5-gal cans. 1 bulk kerosene tank 1,000 gal capacity 4' dia. 11' long outside oil house. 1 sq. tank 750 gal. - inside whistle house
Other (Describe): 1 closet in each service room fitted with shelves for spare lamps, etc.
Suitability: Dry & suited for purpose
Fog Signal General
Fog Signal Kind: Type F Diaphone
Time to Start: About 10 minutes
How Long Will Pressure Last: About 5 min.
Year of Manufacture:
Characteristic: 3 sec blast; 3 sec silent; 3 sec blast; 3 sec silent; 3 sec blast; 45 sec silent
Duplication: All essential parts
Timing Device:
If whistle, siren, or trumpet, Pressure at Which Blown: Diaphone 30 lbs
Height Above Water:
Compass Direction:
Location: Guards N'ly end of Cape Ann
Distance and Direction: 194 NE'ly of S tower
Water Supply: Rain water
Reached from Lighthouse: Walks
Description of Fog Signal Building: 32' x 32' built brick with hip roof
Pressure And Recording Gauge:
Internal Combustion Signal
Fog Signal Kind:
Internal Combustion Kind: Vertical in duplicate
Internal Combustion Manufacturer: August Mietz Inc. # 7749 - 7750
Internal Combustion Date: 1915
Internal Combustion Size: 7 x 8 2 cyl
Internal Combustion Horsepower: 18
Internal Combustion Fuel: Kerosene
Internal Combustion Starter: Hot ball
Compressor Maker: August Mietz Inc. 1915
Compressor Seat: Same crank shaft
Compressor Machinery:
Compressor Diameter: 6.5"
Compressor Stroke: 8"
Compressor RPMs: 400
Character of Air Inlet: 3 5/8"
Kind of Unloader: Pappet
Diameter of Delivery Pipe: 2.5"

Air Receiver
Number: 2
Diameter: 5'
Height: 11"
Capacity Cubic Feet: 206
Pressure in Each: 30 lbs
Make of Reducing Valve: None
Location: 1 double & 1 single W'ly of S tower. 1 double W'ly of N tower
Coloring: Brown metallic white trimmings
Construction Materials: 1 double brick, 1 double & 1 single wood
Number of Rooms: 7 single; 6 & 6 - 1 double; 6 & 5 - other double
Number of Dwellings: 3
Heating Plant: Direct hot water - each dwelling
Number of Keepers: Keeper in single; asst keepers in doubles
Furnished Quarters: All
NOT Furnished Quarters: None
Outhouses: 2 fuel houses & supply house
Outhouse Coloring: Same as dwellings
Paths and Walks: Walks between dwelling, fog signal & boathouse
Area Inclosed:
Area of Garden:
Area Timber or Shrubbery:
Cultivation Area Available: About 5 acres
Area Cultivated: About 1/4 acre
Character of Surroundings: Fast ground, ledge & rocks
Stove, Maker: Magee Grand, Howe & Lincoln, Magee Standard (2)
Stove, Size: 7-18 (3 Magees)
Sink, Maker: Not known
Sink, Size: 22" x 48" (4)
Pump, Maker: Douglas (4)
Pump, Size: #2 (4)
Lamps: 4 brass table, 4 brass hand lamps from General Depot
How Procured: Rain water for domestic use, well water for drinking
Quality: Good
Quantity: Ample
Injury Possible: No
Purity Precaution: Frequent cleaning
Tank Capacity: Single dwelling 2700; Brick 1100 & 1300; Wooden 750; Fog Signal 7800 & 10,000
Tank Material: Brick cement plastered. Fog Signal reservoir excavation in ground roofed in.
Distilling Apparatus: False
Distilling Manufacturer:
Well Description: About 10' deep with wooden curb
Well Diameter: 3'
Well Lining: Brick lined
Pump or Bucket: Bucket
What Power Used: Hand
Distance from Dwelling: About 270'
General Opinion: Healthful
Diseases: None
Local Causes: No
Recommended Improvements: No
Access to Lighthouse: Landing on boatslip at boathouse - no wharf or road
Distance and Direction: 800' NW from S tower
Miscellaneous Remarks: There is a hand car railroad extending from boathouse to dwellings & fog signal building for transporting coal & supplies.
Boat #1
Boat Number: 5
Type: Dory
Length: 5'
Width: 13'
When Built: 1922
Date Harbored at Station: Dec. 21, 1928
Sails: False
Suited to Work: Yes
Boat #2
Boat Number: 3
Type: Power Dory
Length: 5'
Width: 13'
When Built: 1922
Date Harbored at Station: May 14, 1926
Sails: False
Suited to Work: Yes
Boat #3
Boat Number: 140
Type: Dory
Length: 4' 6"
Width: 13'
When Built: 1919
Date Harbored at Station: 1920
Sails: False
Suited to Work: Yes
Boat #4
Boat Number: 35
Type: Power dory
Length: 5' 6"
Width: 19.5'
When Built: 1922
Date Harbored at Station: March 21, 1925
Sails: False
Suited to Work: Yes

Power Boat
Engine Type: Gasoline
Horsepower: 6
Engine Maker: Lathrop Number 21098
Spare Coil:
Battery: 6 dry cells
Propeller Diameter: 18"
Propeller Pitch: 24" (3 blade)

Hoisting Engines
Hoisting Engine Kind: Gasoline - 6 HP
Engine RPMs: 400
Engine Diameter: 6"
Engine Stroke: 8
Engine Boiler: None
Engine Maker and Date: Fairbanks Morse & Co. - date unknown - # 349534
Serial Number:
Cylinders and Size:
Hoist Starter:
Hoist Miscellaneous:

General Information:
Boats on Station: In boathouse