John Cadden was the son of John Francis Cadden & Sarah Maitland Sharpe. His maternal grandparents were Anthony Sharpe & Mary A. File who both emigrated from Germany. His paternal grandparents were Patrick Cadden & Ann (Honora) Stanton who both emigrated from Ireland.
His siblings were: Eleanor A, James J, Anthony Vandril, Edward R & Anna Maitland.
His first wife was Edith Cameron of Parkersburg, WV whom he had 3 daughters, his second wife and now widow is Virginia whom he had 1 son with.