The census returns for 1841 showed Harthill had a population of 289 with 60 identifiable families. By 1864 a good number of incomers from Ulster who easily adapted to the way of life in the area. One of these ways included interests in Orangeism and they began to meet regularly with others from their homeland. The area around Harthill was rich in Covenanting history and is home to the Peden Stone. Orangeism was born in Harthill in 1874 and the first meeting of the District Loyal Orange Lodge No 30 is mentioned having taken place in the William Forrester's Hall. A centennial parade was recorded in August 1977 on the occasion of the 100 anniversary of The Harthill District L.O.L. No.30. A Centenary Ball was held in Benhar House on 5 November that year too.