Mary Wallop William-Powlett

(born 1936) (b. 1936)

Parents

• Peter de Barton Vernon Wallop William-Powlett
• Katherine Elizabeth Keyes

Children

• Sara Arabella Janson
• Nicola Claire Wallop Janson
• Lucinda Katrina Janson

Siblings

• Barton Roger Wallop William-Powlett

Partners

• Jonathan Janson