 Our Darling ’ s First Book ( written in collaboration with Dorothy Barker ) ; Blackie , 1929 
 Our Darling ’ <a href='null_genetive' title='1'><mark>s</mark></a>First Book ( written in collaboration with Dorothy Barker ) ; Blackie , 1929 
Our Darling ’  First Book ( written in collaboration witt Dorothy Barker ) ; Blackie , 1929