Throughout his writing Aspin returned over and over to the ways in which Haslingden and Helmshore have changed and developed over the last century. Both places grew enormously during the
Industrial Revolution, and were famous for the production of woollen and cotton goods. Many of his books record the rise and fall of the mills, which once dominated the skyline; the move away from railways to motorways; and the overall changes of the last half century, in which time Haslingden and Helmshore have become large residential areas for people commuting to Manchester and other nearby towns. His
The Water-Spinners, A New Look at the Early Cotton Trade, records his search for the sites of mills that used
Sir Richard Arkwright's machines.
The Golden Valley describes Rossendale's most important years. Aspin was also concerned with the civic and spiritual life of the community, as well as with sports (especially cricket) and other pastimes. His second book was a history of Haslingden Cricket Club in the Victorian Era, which was reviewed by
John Arlott in Wisden. Aspin also wrote the popular
Shire Publications guides to both the woollen and the cotton industries. Aspin's research in the 1970s on poverty in working-class
Salford,
Manchester and elsewhere in
Lancashire led to the journalist Stanley Graham's writings on cholera and sanitation in the slums. Aspin contributed articles on cotton pioneers James Hargreaves, James Thomson and John Bullough, to the
Oxford Dictionary of National Biography. At the age of 70 Aspin wrote,
Just a Few Words: A Helmshore Boyhood, remembering 50 years of thoughts and feelings of living in Helmshore throughout the 30s and 40s. He also authored, sometimes in partnership with another local historian, John Simpson, several books of historic photographs of the district. After retiring Aspin wrote over a thousand light verses, published by Royd Publications and Carnegie Scotforth. As well as his writings on local and textile history and heritage, Aspin wrote a number of short books for children and young people. During his later years he also wrote booklets of ghosts and hauntings (typically taking place within Rossendale), and was a member of the
Society for Psychical Research. == Bibliography ==