The earliest public reference to Oakley Street appears to be in the Belfast Telegraph - Wednesday 18 June 1902 giving details of school attendance prosecutions where a list of parents was named owing to their children not attending school regularly.
Oakley Street (off Crumlin Road, Ballysillan) features in the 1902 (BPUD). It is not listed in the 1901 (BPUD).
A surmise that the owner of the property around Ligoniel may also have been involved with Oakley Park outside Downpatrick.