I've also summarized the data of blood relatives of Thomas Murphy & Ellen O'Brien. 
The full list of such descendants is accessed from the "Kind" tab at the bottom of the
Cousins Summary data.  The Canon number is like a generation number (with respect to Thomas). Note that the "nth-cousin" groupings are at MOST nth cousin. I.e., the 2nd cousin grouping may contain 1st cousins, with respect to each other... or even siblings!  It takes some getting use to..