 Moving to London in the early 1970s, Sanderson worked as a counsellor and psychiatric nurse, and on the problem page of "Woman's Own".Sanderson began campaigning for equality for gay people in 1969.His MediaWatch columns for "Gay Times" have been a feature since 1982, and were described as "probably the most informative record of the extent of press homophobia in the UK in the 1980s".