1858                64 Exchange Street, Portland, Maine.

William Senter of the firm Lowell & Senter were recorded in one advertisement and one announcement.  The advertisement appeared on January 5, 1858 in the Christian Mirror (Portland, Maine).  Lowell & Senter, Watch Makers, And Dealers In Watches, Chronometers, Jewelry, Charts, Nautical Instruments, And Fancy Goods.  64 Exchange Street…Portland.  Abner Lowell, William Senter.

The announcement appeared on October 26, 1858 in the Portland Weekly Advertiser (Portland, Maine).  The County Cattle Show At Standish.  Awards…Miscellaneous…

Burnham, Portland, best photographs, diploma and 8.00

Messrs. Lowell & Senter, Portland, for their “Stereoscope” with its interesting views, diploma. 

William Senter is not recorded in other photographic directories.  Lowell & Senter may not have been photographers in fact new research has found advertisements that list them as Jewelers.