Lintorn-Orman was born at 36
Cornwall Gardens,
South Kensington, London, to
Charles Edward Orman, a major from the
Essex Regiment, and his wife, Blanche Orman (). Her maternal grandfather was
Field Marshal, Sir
Lintorn Simmons. Upon her grandfather's death in February 1903, Lintorn-Orman's mother inherited the family's immense wealth, since she was likely the only surviving child at the time. The Orman family adopted the surname of Lintorn-Orman by
deed poll in 1912. Raised in
Bournemouth in
Hampshire, before moving to
Liphook, Hampshire, at the age of nine, Lintorn-Orman was among the few girls seeking entry into scouting organisations; along with her friend
Nesta Maude, in 1908, Lintorn-Orman had registered as a Scout troop, using initials rather than
forenames. By 1909, she had led both the first and second Bournemouth
Girl Guides and she was awarded one of the first of the Girl Guides'
Silver Fish Awards in 1911. When the
First World War broke out, Lintorn-Orman joined the war effort as an
ambulance driver. Initially serving with the
Women's Volunteer Reserve, she was assigned to the
Scottish Women's Hospital Corps and sent to the
Serbian front in 1916. During her time in the war, she was, according to a later report in the fascist press, twice decorated with the , awarded for gallantry in action, for "heroic rescues in
Salonica". In 1917, she contracted
malaria and returned to London, joining the
Red Cross. In 1918, she became Commandant of the
British Red Cross Motor School at
Devonshire House, which put her in charge of training all ambulance drivers for the Red Cross. ==Fascism==