Mulford's prose works include a combined biography of Sylvia Townsend Warner and Valentine Ackland, a book about female saints, and essays about poetry.
She wrote a biography of Sylvia Townsend Warner and Valentine Ackland (besides providing an introduction to a 1989 reprint of Townsend Warner's 1938 novel After The Death of Don Juan) and co-wrote with Sara Maitland a book on the subject of female saints.
Mulford also has used her experience teaching in Cambridge to write a number of critical essays about poetry, saying that women poets are still "too tied to the familiar".
During this period, Street Editions published such poets as John James, Sarah Kirsch, Tom Raworth, John Wilkinson, Stephen Rodefer and Rod Mengham, and was at its peak regarded as a leading outlet for experimental literature that could not be published by mainstream presses.
More recently, her partner was the composer Gordon Crosse, with whom she bought a cottage on Papa Westray, the northern-most of the Orkney Islands.