I am not sure what happened to siblings ...................... Bridget (b. 1877) and Susan (b. 1877).
I believe Bridget and Susan were twins.
Bridget and Susan appear to have died not long after birth. Returns quarter 3 is July-Sept. The Returns Volume No 11 and Returns Page No 521 are the same for both girls. Unfortunately death records from Irish Genealogy only go back currently to 1878 but earlier records will hopefully be put on in due course.
Names SUSAN MCATEER, BRIDGET MCATEER
Date of Death 1877
SR District/Reg Area Newry
Deceased Age at Death 0
Returns Year 1877, Returns Quarter 3
Returns Volume No 11, Returns Page No 521
KG