Above is a link to a thread on Wm D Guerin Jr's obituary, (his mother was Elizabeth McNinch) He is half brother to Leroy James Guerin (whose mother was Emily Waters). Their father was William D Guerin Sr.
The Cebrowski/Bagin clans descend from the Guerin/Waters first marriage through Leroy and Oliver.
To add to the STONE mystery (which Elsie and I believe is in error as we have solid data on Wm Sr) I recently received correspondence from Marie Guerin whose husband was descended from the Guerin/McNinch union.
In it, her husband's father, Oviat John Guerin, writes that his grandfather, Wm Guerin Sr., "moved from New York already married to Elizabeth Stone".
So now we have apocryphal evidence of a STONE connection from two sides of Wm Sr's family. Slightly fascinating, probably unresolvable!
My thanks to David S. for the actual marriage date of James Flynn and Johanna McCabe: Nov 13 1883.
The hunt goes on...