There used to be a Clare Co.gov site that had most of the Considine family detail but I can't find it now. Working from crappy older discography and genealogy notes:

Nephew: John Considine (1875-1956)(age 80-81,) Kilraghtis Burial Ground, Ennis, County Clare, Ireland.

It came to John from his mother, Catherine “Kate” O'Connell Considine, who had kept it for him since his father, Patrick Considine, died when John was just an infant. They had never left the old country.

Patrick Considine (1846 or 1850-1876,) also in Kilraghtis, was the son of Peter and Mary R. Considine and brother of Michael Considine, born 11th August 1850, Castletown, just south of “Spancel Hill.”

There was some confusion about “Moira Keane” and John's wife “Mary K.” Considine being one and the same person that brought them all together but... dunno now. Mary K. passed in 1960.

You can find everyone but the poet on your favorite graveyard search engine today but not a stitch of folk history to go with. Afaik, Michael Considine's final dates & resting place are still unknown.