married October 6, 1796." The entry appears to be in error because 

 the marriage intentions had read "Benjamin King Hagger." It is 

 presumed that Mehitable was the daughter of WilHam Ballard, 

 the tailor of Framingham, from whom Hagger had bought his 

 house on Ann Street, south of Mill Creek. ^^^ 



Benjamin King Hagger is listed in the city directory of Boston 

 for 1798 as a "mathematical instrument maker" on Ann Street. 

 This, however, is the last listing for his name in Boston, as his 

 name does not appear in the 1803 or subsequent directories. 



Shortly after 1798 Hagger appears to have left Boston together 

 with his wife, and it is probable that he established himself as an 

 instrument maker in another Massachusetts community, at present 

 unknown. In about 1816 Hagger moved with his family to Balti- 

 more and continued his instrument-making business. 



The records of the 1850 Federal census of Baltimore indicate 

 that two of Hagger's sons, John W. and William G. Hagger, had 

 been born in 1800 and 1806 respectively, in Massachusetts, pre- 

 sumably in the community to which Hagger had moved from 

 Boston before moving once more to Baltimore. 



According to Matchett's Baltimore directory for 1824, Hagger 

 was a "mathematical and optical instrument maker" with a shop 

 at 57 South Street. His advertisement in the directory stated 

 that he 



Respectfully acquaints his fellow citizens that he executes all orders in the 

 line of his business with punctuality and confidently professes to give satisfac- 

 tion to his employers, from the experience of a regular apprenticeship and 

 37 years practice. 



This indicates that Hagger completed his apprenticeship in 1787, 

 when he was 18, and since then had been estabhshed in his own busi- 

 ness or had worked for another as a journeyman instrument maker. 

 His first advertisement in the Boston directory appeared in 1789, 

 wherein his shop was listed as being on Ann Street. 



Hagger died in Baltimore on November 8, 1834, at the age of 

 65 y after a residence of 18 years in that city."* 



Thus far only one instrument by Hagger has been found — a 

 wooden surveying instrument or semicircumferentor (fig. 59). It 

 is in the possession of the writer. 



*" Marriage Document no. 101, Report of the Record Commissioners of Boston, 

 p. 298. 



"* The Baltimore American and Commercial Advertiser, November 9, 1834. 



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