Patrick Power and Mary Sullivan married in Muintervara Catholic Parish on 17 September 1828.  The marriage witnesses were John Sullivan and Richard Roycroft.  Priest was Fr John P Clancy

Children baptised in Bantry Catholic Parish on dates on Baptismal Register:

Ellen Power, 18 Oct 1829.  Sponsors: John Power, Cathl Sullivan

Mary Power,

John Power, 2 Oct 1831.  Sponsors: James Sullivan, Mary Sullivan

Edward Power, 9 Feb 1834.  Sponsors: Wm. Dorling, Mary Sullivan

Honora Power, 17 Apr 1840.  Sponsors: Edward Fahy, Mary Sullivan

Patrick Power, 21 Aug 1842.  Sponsors: Patrick Driscoll, Ellen Hannon.  Patrick died and the next boy was given the name (not uncommon then)

Patrick Power, 20 Oct 1844.  Sponsors: Jerh Regan, Honora Murphy

By the time Patrick was aged 4 years both his parents had died.  He was taken to the United States by his older brother, John.  We read this in newspaper reports following Patrick's own death at aged 25, just 2 years after he was ordaned a Catholic Priest.

This was the time of the Great Famine in Ireland

In the mid 1840’s just prior to the famine the estimated population of Ireland was around eight and a quarter million people.  Some writers believe it may have been higher and even up to, or above, 9 million.  However, whichever figure one adopts we can see from the above chart that there is a near vertical drop in the estimated population of Ireland from 1847 to 1853, which was the period of the Great Famine and a drop in population of 1.8m people.   (reference  https://bmdnotices.com/Estimated-Population-in-Ireland-19th-Century.pdf  )