Sylvia, As I was looking through records for my own family, I did note down anything I found about Moores, The Howe, as my grandfather William Henry Moore born 06.12.1874 to Margaret Watson, was the illegitimate son of William Moore (farmer) who was related to them in some way. You will need to confirm these details as I haven't double checked them.
Robert Moore, born circa 1826 Arbory
1881 census, Ballacottier, Onchan aged 55yrs
1891 census, Ballahow, aged 65yrs
1901 census, Nunnery Howe, aged 74yrs
He died 10 Sep 1901 aged 75yrs
His wife Catherine was born circa 1824 in Rushen. she died 07 Jan 1898 aged 74yrs
Their ten children of whom Caesar is the youngest are listed in 1881 census as born in Malew. Caesar b. Malew 22 April 1866 and died 1838. I believe Caesar & Robina had children born in Braddan. Robert C. 1898; Esther C. 1901; Douglas Caesar 1903; Ethel Robina 1905. There may be other children. In Jan 2003 there was a lady, Judy Evans, researching this family. Her grandmother was Robina's sister & they came from Croft House, Santon. I do have dates for Robert & Catherine's children if you need them.
Hope this helps. Marie