Tamsin Elizabeth Wilton (1952 – 30 April 2006) was an English lesbian activist, and the UK’s first Professor of Human Sexuality. She researched and wrote extensively about gay and lesbian health, the process of transitioning to lesbianism, and the marginalisation of lesbian issues within sexuality studies. Early career and entry into academia Wilton took her first degree in English and Fine art at the University of Exeter, Devon in 1973, and trained as a school teacher. Initially she taught in a state school for five years, then managed a bookshop, then worked at the Arnolfini arts centre and a Service Nine voluntary agency, both in Bristol. from there she became involved in HIV voluntary work with the Aled Richards Trust Women and AIDS group. She also contributed cartoons to magazines, publishers and television companies. Her marriage ended in 1988, and she had to look after her young son Tom alone. In 1990 she began studying for a master's degree in Gender and Social policy and began research on the social aspects of HIV/AIDS with Peter Aggleton's team at Bristol Polytechnic (renamed University of the West of England) from where she published the first paper in her fifteen-year career as a lesbian feminist academic. She was appointed as the Director of the HIV/AIDS Social Research Unit at located within the faculty of Nursing Health and Applied Social Sciences, and later the faculty of Social Sciences. Sexuality in life and work In the late 1980s Wilton came out as a lesbian, which gave her a strong sense of identity and politics as well as informing her intellectual work, although she never felt completely accepted by lesbians who had come out earlier in life because of her personal history of heterosexuality. She wrote in 1993, "the positionality of "lesbian" offers a potent site from which to investigate the social, cultural and political interlocution of gender and sexuality". She saw herself as having a distinctly lesbian perspective on the issues she researched in a way that challenged the assumptions of colleagues and gay men, particularly in relation to gendered behaviour. In the lesbian edition of Sexualities (3[2], May 2000), Wilton noted the marginalisation of lesbian issues within sexuality studies and the journal. This conflictual approach was contra-punctuated by a warms in her personal relationships, which embodied a strong sense of solidarity with co-workers on sexuality, especially with gay men. She was keen to rework