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Cambridge in Middlesex County, Massachusetts — The American Northeast (New England)
First Long-Distance Phone Call
First Long-Distance Phone Call Marker Photo, Click for full size
By Roger W. Sinnott, November 19, 2011
1. First Long-Distance Phone Call Marker
From this site
on October 9, 1876
the first two-way long distance
telephone conversation was carried
on for three hours. From here in
Cambridgeport Thomas G. Watson
spoke over a telegraph wire to
Alexander Graham Bell
at the office of the Walworth Mfg. Co.
69 Kilby Street, Boston Mass.
— | —

This plaque
Presented to the City of Cambridge
by the
North Council
Thomas Sherwin Chapter
Telephone Pioneers of America
November 1, 1961

Location. 42° 21.782′ N, 71° 5.716′ W. Marker is in Cambridge, Massachusetts, in Middlesex County. Marker is at the intersection of Main Street and Osborne Street, on the right when traveling east on Main Street. Click for map. Marker is at or near this postal address: 710 Main Street, Cambridge MA 02139, United States of America.
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies. Davenport Car Manufactory (here, next to this marker); Fort Washington (approx. 0.6 miles away); Jake & Earl's Dixie BBQ (approx. ¾ mile away); Putnam School (approx. 0.9 miles away); Spot where the British Landed (approx. one mile away); New Fenway Park (approx. 1.2 miles away); Fenway Park (approx. 1.2 miles away); Ted Williams (approx. 1.2 miles away). Click for a list of all markers in Cambridge.
View of Building Photo, Click for full size
By Roger W. Sinnott, November 19, 2011
2. View of Building
The marker is mounted on the corner of the old Davenport Car Manufactory building, next to the first-floor window.

More about this marker. “Thomas G. Watson” in the inscription seems to be a typo for Thomas A. Watson.
Regarding First Long-Distance Phone Call. Coming just seven months after their first transmission of speech over a wire, this “long distance” experiment attracted wide notice. For example, on Nov. 18, 1876, the Arizona Citizen (Tucson, Arizona Territory) reprinted the report of a Boston paper: “Telephones were placed at either end of a telegraph line owned by th[e] Walworth Manufacturing Company, extending from their office in Boston to their factory in Cambridgeport, a distance of about two miles. The company’s battery, consisting of nine Daniels cells, was removed from the circuit and another of ten carbon elements substituted. Articulate conversation then took place through the wire. The sounds, at first faint and indistinct, became suddenly loud and intelligible. Mr. Bell in Boston and Mr. Watson in Cambridge took notes of what was said and heard, and the comparison of the two records shows that the transmission was almost perfectly accurate. Conversation was carried on for about half an hour, generally in an ordinary tone of voice, but often in whispers. The credit of this important discovery is due to Mr. Bell.”
Also see . . .  Alexander Graham Bell - Wikipedia entry. (Submitted on November 22, 2011, by Roger W. Sinnott of Chelmsford, Massachusetts.)
Credits. This page originally submitted on November 22, 2011, by Roger W. Sinnott of Chelmsford, Massachusetts. This page has been viewed 1,248 times since then. Photos:   1, 2. submitted on November 22, 2011, by Roger W. Sinnott of Chelmsford, Massachusetts. • Bill Pfingsten was the editor who published this page.
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