This entry seemingly refers to a person named David Silva who resides in Chelmsford, Massachusetts. It’s a correct noun, particularly a compound correct noun, composed of an individual’s title adopted by their place of residence. Such data is commonly used for identification or finding people inside a particular geographic space.
The significance of the sort of data rests on its utility in varied contexts. It may be related for authorized proceedings, genealogical analysis, or just connecting with people inside a group. Historic context is much less related until particular occasions tied to that particular person and site exist.