Resolved, That the application of John Lanyon Esq, for permission to name a new street (running from the south side of the Falls road to the new Hannahstown road, commencing on the Falls road nearly opposite Mr Ross’ new house ‘Leeson Street’ be complied with. (TIC: 2nd January 1862).
The John Lanyon named in this record is likely to be the architect (1839–1900), son of Charles Lanyon, who was then practising from Upper Queen Street, Belfast. By 1862 he was already professionally connected with Dublin, and his later residence at Leeson Park (1864–67) suggests a possible association with Leeson, which may have influenced the choice of street name.