Catherine Cosnahan (1768-1809) (1768–1809) Parents Elinor Radcliffe Joseph Cosnahan Children Julius Casement Francis Casement John Casement Thomas Casement Elizabeth Casement Rosetta Casement Catherine Casement Robert Casement William Casement Hugh Casement Cornelius Casement Roger Casement Elinor Casement George Casement Partners Roger Casement