1847                Court Street, corner Howard Street, Boston, Massachusetts.[1]

1848                11½ Tremont Row, Boston, Massachusetts.¹

1849                Address Unknown, Massachusetts.¹

1850-1853       2 Blanchard Block, 103 Court Street, Boston, Massachusetts.¹

1854-1864       75 Court Street, Boston, Massachusetts.¹

1847 April 21.  The Boston Daily Bee.  (Boston, Massachusetts.)  April 21, 1847, Vol. 10, No. 147, P. 2.

Daguerreotype Miniatures for $1.50, At the corner of Court and Howard streets.  Walter B. Eastman would respectfully inform his friends and the public that he has taken rooms as above, where he will warrant a perfect likeness at the above low price, with or without color.

Advertisement ran from April 21 to May 4, 1847.

1847 June 7.  Boston Daily Star.  (Boston, Massachusetts.)  Vol. 4, No. 498, P. 3.

Daguerreotype Miniatures For $1 50, at the corner of Court and Howard Streets.  Walter B. Eastman Would respectfully inform his friends and the public that he has taken rooms as above, where he will warrant a perfect likeness at the above Low Price, with or without color.

Advertisement ran from June 7 to October 2, 1847.

1851-1852.  Boston Directory.  (Boston, Massachusetts.)  P. 27.  Published by George Adams, 1851.

&

W. B. Eastman’s Daguerrian Gallery, No. 103 Court St., Blanchard’s Building, Boston.

1852-1853.  Boston Directory.   (Boston, Massachusetts.)  P. 35.  Published by George Adams, 1852.

W. B. Eastman’s Daguerrean Gallery, 2 Blanchard’s Building, Court Street, 4 Doors West of Hanover, Boston.  Perfect Satisfaction Given.

Ca, 1854-1864.  Information from a daguerreotype in Chris Steele’s collection

Ninth plate daguerreotype by Eastman & Co. 75 Court St. [Boston]

Advertising card on reverse. 

“25 Cent Daguerreotypes.  At the Plumbe National Daguerrian Gallery,

No. 75 Court Street, [Boston]

The Oldest Establishment of the kind in New England. 

Founded 1840. 

W. B. Eastman & Co. proprietors.

Copying and all that pertains to the Art done at Low Prices.”

1854 March 8.  The Boston Herald.  (Boston, Massachusetts.)  March 8, 1854, No. 9566, P. 4.

Robbery.  Sunday night last, the daguerreotype saloon of Eastman & Cahil, No. 75 Court street, was entered, it is supposed by picking the lock, and a lot of miniature cases stolen.  Last night, officer A. C. Whitcomb and watchman Jellison, arrested two boys in New Prince street, named Patrick Brawley and John Mahan, on suspicion of being the robbers.  In the pockets of the latter was found a lot of cases, and each had a implement known as a “picklock” in his possession.  They are both known to the Police, and Brawley has already been in State Prison.  In the Police Court, this morning, Mahan was held in $500 for trial in the Municipal Court, and Brawley in $800.

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[1] A Directory of Massachusetts Photographers 1839-1900.