Sophia Louisa Slade (born 1837) (1837–1920) Parents Matilda Ellen Dawson Sir John Slade, 1st Baronet Children Gertrude Mary Burton Grace Ellen Burton Siblings Adolphus Slade Herbert Dawson Slade William Hicks Slade Wyndham Slade Gertrude Matilda Slade George FitzClarence Slade Ernest Augustus Slade Alfred Robert Slade Charles George Slade Charlotte Susan Slade John Henry Slade Marcus Slade Sir Frederick Slade, 2nd Baronet Anna Eliza Slade Partners Adolphus William Desart Burton