 His most successful works were portraits of women, ranging from Lady Millicent Taylour (1918) through to Mrs Thelma Bader, wife of Wing Commander Douglas Bader (1942).His final decade was filled with predominately male commissioned portraits, culminating in his final canvas, an unfinished portrait of Prince Philip, Duke of Edinburgh (1958)

Throughout his career Jagger also painted landscapes for his own amusement, most of which were never exhibited.He produced landscape paintings in Ireland, France, Spain and Italy.