Hi,
Did you look at the census for 1901. There are two entries for Sexton Bishopstown.
1 Cornelius age 30 labourer, wife Margaret age 30 . son Timothy age 7, James aged 4,& Ellen 0, They lived at house no 14 Ballinaspigbeg, Bishopstown.
2 Timothy Sexton servant, Huggarsland, Bishopstown.
Both Ballinaspigbeg and Huggardsland ( correct spelling) are close to each other.
As Agho said Bishopstown is now a built up suburb of Cork City although in 1899 it would have been a very rural area.
Mary