author
A collective author name used for a 17th-century Presbyterian body in London, best known for publishing A Vindication of the Presbyteriall-Government and Ministry in 1649. Rather than pointing to one individual writer, it refers to ministers and ruling elders speaking together during a turbulent period in English religious and political history.

by Ministers and Elders of the London Provinciall Assembly
This author entry refers not to a single person, but to the London Provincial Assembly, a Presbyterian organization active in mid-17th-century England. Sources for the surviving book record connect the name with A Vindication of the Presbyteriall-Government and Ministry, published in 1649 and presented as the work of the ministers and elders gathered in that assembly.
The book itself argues for Presbyterian church government and addresses disputes over ministry, ruling elders, and church order. That makes this “author” best understood as a historical corporate voice: a group of clergy and elders writing together to defend their beliefs at a time of intense debate over religion and governance in England.
Because the name represents an assembly rather than a single identifiable individual, there is no clear personal life story to tell in the usual sense. It is better read as the public voice of a London Presbyterian institution whose surviving reputation rests mainly on that one polemical work.