(c.1818-1874) His first appearance as a daguerreian was in 1843 in Augusta, Maine, in partnership with Thomas Melzeard, Jr. Another source indicates that Masury was associated in some manner with John Plumbe, Jr. in the same year. This information may come from an ad which appeared in the Salem, Mass., Gazette in July 1843, which noted Masury "...from Plumbe's Daguerreian Gallery, Boston... Having practiced the art of photography at the best institute in the United States...".
In 1843 in Salem, Masury was listed at the Franklin Building, over Barton's Apotoecary Shop. His next listing in Salem was 1847, when he appeared on Essex Street, in Kinsman's new building, below the post office. He was listed in business as Masury and Company, and the firm included G. Vinall. In 1848 he advertised in much the same location, in Kinsman's Block, fourth door below the Post Office. He was also listed in Salem in 1849. In 1847 he was listed as Masury and Company.
From 1845 to 1847 he was listed as a daguerreian in Providence, R.I., at 25 Market St., #3 Dyer's Block. There he was listed in business as Masury & Co. From 1847 to 1849 he was listed at 25 Westminster Street.
In 1849 he was listed as a daguerreian in Salem, Mass. He reportedly sold this gallery the same year to Case (J.G.) & Getchell (W.H.).
In 1850-1851 Masury was listed as a daguerreian in Providence, R.I., at 19 Westminster Street. He lived at 121 Pine Street. Sometime in 1850 Masury reportedly sold his Providence gallery to the Manchester Brothers (E.H. and H.N.).
From 1852 to 1855, Masury was listed in Boston, Mass., as a daguerreian, in partnership as Masury and Silsbee (G.M.), at 299-1/2 Washington Street. The firm advertised as the only successors to Chase (L.G.), at 299-1/2 Washington Street and not at 247 Washington Street. They advertised that the gallery was up one flight, and were the new rooms outfitted by Chase. In 1856-1857, Masury was listed as a daguerreian at the same address, in partnership as Masury, Silsbee and Case (J.G.). In 1857 the firm referred to photographs in their advertising as daguerreotypes on paper, and offered them on glass and canvas. They also advertised they took Hallotypes. From 1858 to 1867 Masury was listed as a daguerreian at 289 Washington Street. As of 1858, he was listed alone.
At an unknown date, Masury took one of the celebrated daguerreian portraits of Edgar Allen Poe.