The article presents research notes on the book "Church-Government and Church-Covenant Discussed in an Answer to the Elders of the Several Churches in New England to Two and Thirty Questions, Sent Over to Them by Divers Minsters in England to Declare Their Judgments Therein. Together With an Apologie of the Said Elders in New England for Church-Covenant, Sent Over in Answer to Master Bernard in the Year 1639..." written by the Puritan minister Richard Mather. Details are given describing the significance of the work as a publication during the ecclesiastical debates of the mid 17th century. The views expressed in the work are reviewed and the religious and political contexts surrounding its creation and publication are also analyzed, highlighting the different church structures utilized in New England and Great Britain at the time.