Robert MARTIN died 1871 in Ballydugan, his wife Martha died in 1876 also in Ballydugan. They were living in Ivy Cottages, Ballydugan.
There is a headstone in St Margaret's Downpatrick, which may be this family, but it has no names. Just MARTIN family of Tobermoney.
I also have found reference to a Mary Eleanor Grace MARTIN, likely the great granddaughter of Robert.
Mary was awarded an MBE in 1946.
Michelle