I think this is Samuel, he appears to have died on the same day he was born:
Registration details
Registration number
D/1881/104/1011/4/86
Registration district
Downpatrick(pre-1973 Q4)
Registration sub-district
Killough
Deceased details
Surname of deceased
Ross
Forename(s) of deceased
Samuel
Sex of deceased
Male
Marital status of deceased
Single
Date of death
12th February 1881
Age at death
0
Place of death
District of death
Downpatrick