Fran, Yes I noticed Catherine 9y7m in same grave as her father, whilst her mother Fanny is in the grave with presumably her parents John & Bridget Keays.

1891 Census 15, Lord St Douglas

McCluskey, Henry, H. M. 35 Pub. Victualler, Do.
McCluskey, Margaret, wife, M. 34, Ireland
McCluskey, John, nephew, 13,scholar, Do.
McCluskey, John H., son, 6, scholar, Do. I.O.M.
McCluskey, James, son, 5, Do.
McCluskey Elizabeth, dau, 3, Do.
Burden Margaret E. stepdaughter 11, sch. Peel
Burden, William, stepson, 6, scholar, Peel
O'Connor, Mary Ann, servant 27, Ireland

There was a child Mary Theresa born to Henry & Margaret in1892

Henry McCluskey, son of Owen (Eugene)married Margaret Burden,dau of Thomas, 1 Patrick St. Peel., on 8 Jan 1891

They are buried in grave 1363 Braddan
Henry, 16 Mar 1921
Margaret 29 Jan 1905

There is also a marriage 01 June 1906 of Henry McCluskey, of the Saddle Inn, 2, Queen St. Douglas, son of Owen (Eugene) to Mary (Maria) O'Hanlon daughter of Edward Hine, the witnesses were John Reynolds, Head Rd. Douglas & Elizabeth McCluskey, Saddle Inn, Douglas

As I come across information whilst doing my own research I'll pass it on, though you may already have it. Marie