Perhaps you would like to go to your old The Rose Annuals. UK and add any references that would glean a clue. Issues that have a mention of 'Miss Alice de Rothschild' are" 1912 p51-1 1914 p117-5 1925 p144-3
A picture is worth a thousand words... 1912 RA reference not useful. 1914: "Some of the yellows, such as Marechal Niel, Alice de Rothschild and Souvenir de Pierre Notting, deepen in colour if kept in water for some days in a cool room." 1925: included in a list of 24 roses that might be grown with hope of success in India.