John R. Cammidge was born in York, England, attended Upper Poppleton Primary and Nunthorpe Grammar schools, and then went on to be an undergraduate at Hull University, obtaining an Honours degree in Geology and Geography in 1966. He found work with Ford Motor Company in Brentwood, Essex. He began a career in Human Resources, and graduated from the Institute of Personnel and Development (now known as the CIPD). His career lasted nearly 50 years. He retired in July 2013 and shifted his energies to writing. His first novel (An Unplanned Encounter) was published under the pen name Jonathan R. Husband in 2014, but his subsequent novels have used his real name. The first novel is now published as Unplanned, using his real name.
In 1977, he joined Bank of America in London and transferred to its Headquarters in San Francisco in August 1979. As a result, most of his time since that date has been spent living in the United States, and in 1995, he became a US citizen. He moved from banking in 2000 to Higher Education, first heading the Human Resources function at Stanford University (2000-2003) and then employed in Oakland by the Office of the President, University of California System (2006-2013). From 2004 to 2006, he ran his own consulting firm.
He has two married children with their families living in Arroyo Grande, CA and Rancho Palos Verdes, CA. He has four grandchildren, and his hobbies are birding, reading, golf, travelling, and gardening.