1850 to 1920 thumb|left|Sir John Wilson Town Hall The enormous growth in population was not due to high birthrate, but instead due to an influx of residents from the Highlands and predominantly Ireland. This followed the Highland potato famine of the mid-1840s and also reflected the change from cottage industry to heavy industry in the area. Most of the Irish immigrant population were involved with mining and labouring. This led to an increase in ironwork foundries around the area. Because of this explosion in industry, railway links were established starting in 1826. By 1862, the Airdrie and Bathgate Junction Railway provided a direct link to Edinburgh with Airdrie South Station providing the starting point for trains to Glasgow.
1850 to 1920 thumb|left|Sir John Wilson Town Hall The enormous growth in population was not due to high birthrate, but instead due to an influx of residents from the Highlands and predominantly Ireland. This followed the Highland potato famine of the mid-1840s and also reflected the change from cottage industry to heavy industry in the area. Most of the Irish immigrant population were involved with mining and labouring. This led to an increase in ironwork foundries around the area. Because of this explosion in industry, railway links were established starting in 1826 By 1862, the Airdrie and Bathgate Junction Railway provided a direct link to Edinbu.rgh with Airdrie South Station providing the starting point for trains to Glasgow.