Police are continuing to search for Rosemarie Senior and her two young children after partner Sidney Winson has been found.
The search was launched last Friday amid concerns for the welfare of the 24-year-old mother, her 27-year-old partner, three-year-old daughter Nora and two-year-old son James.
The family were last seen in Chancery Lane, Retford at about noon and initial investigations indicated the family had travelled to Ireland.
Last night Mr Winson was found safe and well in Cannock, West Midlands, having returned from Ireland.
The search now continues for Rosemarie and her children. Police believe they could be in Dublin and would like to make contact with them to ensure they are safe and well.