The carters were employed to transport the granite to the building sites, mostly in Dublin. They would leave Ballyknockan in the early evening, heading out of out of Ballyknockan across the bog road to Valleymount, then through Baltyboys to the join the Dublin road at Russborough.
They travelled overnight to arrive at the Dublin building sites first thing next morning. They made this journey about three times a week in hail, rain and snow. For economy, they each tried to lead up to three horses and carts on each trip.
In the early 1900s, the carters earned 2s 6d for the return trip to Dublin.
They often stropped at Norton's of the Embankment, or one of the other 'watering holes' on the route to have a few drinks and water their horses.