After leaving Cambridge Sheild held posts at St George's as anaesthetist and Westminster Hospital, culminating in a seven-year period at Charing Cross Hospital where he was assistant surgeon, aural surgeon, demonstrator of anatomy and lecturer in practical surgery.
Marmaduke Thweng, 1st Baron Thweng | Marmaduke Hussey | Sir Marmaduke Wyvill, 1st Baronet | Marmaduke Pickthall | Marmaduke Middleton | Marmaduke Hussey, Baron Hussey of North Bradley | John S. Marmaduke | Marmaduke Wyvill | Marmaduke Furness, 1st Viscount Furness | Marmaduke Duke | Marmaduke Cradock |