Well thats interesting, i thought he would be detailed on the census as a Music Hall Artiste but he is listed as a Cloth Warehouseman.
By september of the same year he was married and detailed his occupation as Music Hall artist, which is what we knew of him as, my great grandmother the same.
Interestingly Middlesbrough record office found her on the Middlesbrough Musical Union Concert Book (1906-1912) listed as a soprano in the festival chorus. I researched the Stage Archive for a Lila D (we thought her stage name was Lila delores or desmond or the like) and found a Lila Delis - Soprano so not sure if that was her. She could of course worked the music halls as a singer in the chorus, but I dont know why she would have had a stage name if so. Both James Arthur Yeadon and her were both known better by their stage names than their real names so I am led to believe via family recollection. She also took her children to Rio in 1921 (without James A yeadon) and my grandmother recalls having a nanny whilst there so I assumed maybe she travelled with a musical company of some sort - strange place to go in 1921 with two tiny children and no husband. :-)