Was Joseph Cuthbert related to Christopher?

Faulkner's Dublin Journal of March 5th - 9th, 1765, at http://www.irelandoldnews.com/Dublin/1765/MAR.html contains the following notice under the heading Marriages:    

“Wednesday last, Mr. Joseph CUTHBERT, an eminent Taylor of the Parish of Delgenny, County of Wicklow, to Miss MEDCALF, of Windgate, in said Parish”.  

The Christ Church Delgany register shows the marriage of Joseph Cuthbert to Elizabeth Medcalf on March 7th, 1765.  This is the earliest Cuthbert marriage at Christ Church, the same church in which Christopher was married in March 1769.  Were Joseph and Christopher related? 

The only child of Joseph and Elizabeth Cuthbert that I have discovered so far is a son, Richard Cuthbert, baptised on October 13th, 1766, also at Christ Church Delgany.   This is the earliest Cuthbert baptism listed in the Delgany register. 

Christopher and Elizabeth’s children

I am eternally grateful to my friend Doreen in Ireland who first found Christopher and Elizabeth Cuthbert and their family in the Delgany parish records, getting me back one further generation.   The Parish Registers of Christ Church Delgany show the baptisms of their children:   

Mary, Nov 1769;  

Robert, May 1772;  

Christopher, Dec 1774;   

Charles, March 1776;  

William, Jan 1779 ; 

John,  Nov 1781;  and 

Jane, Jan 1791. 

The family lived at Windgate at the time of at least one of the baptisms.  

William is my great great grandfather and I’ve traced many of his descendants down to the present.  Charles was the subject of a fascinating court case which I’ll describe later on.  I would be interested in learning more about the other children and their descendants.

The Parish Registers of Christ Church Delgany are in the Representative Church Body Library in Dublin.  A transcription is at the Society of Genealogists Library in London.