A feminist, Littlejohn launched the League of Women Voters in 1928 to support female candidates for public office and to press for feminist reforms. Its founders included
Mrs Dougall-Laing,
Adela Pankhurst Walsh and
Jessie Street. Alongside her organising, Littlejohn was a pioneer in women's broadcasting, using her radio slots on Sydney's
2UW and
2UE radio stations and regular column in the ''
Australian Women's Weekly'' to disseminate feminist ideas to popular audiences. Through her role in the
Racial Hygiene Association of New South Wales, Littlejohn was also a proponent of eugenics. In addition to her domestic feminist activism, Littlejohn built a parallel career as a transnational activist. In 1931, she travelled to Europe to represent Australia at a range of feminist conferences, including meetings of Open Door International and the British Commonwealth League of Women. Alongside her friend and collaborator in the UAW,
Ruby Rich, Littlejohn was an Australian delegate to the congress of the
International Alliance of Women for Suffrage and Equal Citizenship in Istanbul in 1935. Later that year, Littlejohn took up the presidency of the Geneva-based transnational campaign group,
Equal Rights International, advocating for the economic recognition of women's housework as well as an international equal rights treaty before the Assembly of the League of Nations. Littlejohn was a member of the
Sydney Day Nursery Association’s governing committee. She belonged to the New South Wales Institute of Journalists (1933–41) and the Business and Professional Women's Club of Sydney. == Recognition ==