 Although the marriage was childless they adopted a young student for the Church of England ministry called Lethbridge Moore as their son in about 1848.He later became Vicar of Sheringham in Norfolk and after the death of her husband Mrs Mortimer moved first to Hendon and then to Norfolk where she cared for several charity orphans whom she saw educated and started in employment.She travelled extensively visiting friends and relations and eventually suffered from a series of strokes, becoming increasingly frail and dying at West Runton on 22 August 1878, surrounded by family and friends.