Elizabeth Liddell, later Mrs. Robert Hodshon Cay, (22 February 1770 – 1831) was an amateur British artist specialising in pastel portraits.

Liddell studied under the British artist Archibald Skirving and from him, she learned to paint pastels and portraits.

Her son John Cay shared the house until 1822, before moving to 5 South East Circus Place, slightly to the north.

Other more vague works include: Her box of art materials is held by the Victoria and Albert Museum in London.

The box proves her pastel work was applied by cloth or brush rather than in stick form.