Henry Willoughby Trevelyan (1803-1876) (1803–1876) Parents George Trevelyan Harriet Neave Children Sir Ernest John Trevelyan Siblings John Trevelyan Edward Otto Trevelyan William Pitt Trevelyan George Trevelyan Frances Agnes Trevelyan unknown daughter Trevelyan Harriet Louisa Trevelyan Charles Edward Trevelyan, 1st Baronet