Rene:
I searched the subscription site Roots Ireland and they had two Michael Egan baptismal records-the first in 1833 and the second 1835 with the same date, parents (see notes on surname of mother) and sponsors. We don't have access to the Blessington parish register to verify so I'm not sure which date is correct. Sometimes a child is born and dies in infancy and the next child of the same gender is given the same name but unlikely here because of the same date (August 16th)
Michael Egan baptized August 16 1833 father Francis Egan mother Sara Bradly sponsors Michael Carrol Anna McGrath
Michael Egan baptized August 16 1835 father Francis Egan mother Sara Brady sponsors Michael Carrol Anna McGrath
There was also a Laurence Egan born to the same parents and baptized November 18 1830 same parents ( mother's name spelled Bradly)sponsors William Walsh and Mary McGrath
Mary Brady baptized June 9 1844 father Francis Egan and mother Sarah Brady sponsors Michael Magrath and Margaret Brady
I did not locate a marriage record.
Roger McDonnell