[Phoenix]

I'd better start with the reason for my interest.

Best mate has two carte de visite of little boys, dressed identically. She assumed they were family members, but they had boaters with "sillo" and "elspa" on them. Sillo was the elder.

I have found an account where Elspa's father clearly thinks he can make more money by managing the boy himself. At that stage the surname is Stone. The act is relaunched as Lillo and Elspa. I assume they are brother and sister. It is very difficult to work out the sexes of the children (except Lillo!) because the accounts vary from newspaper to newspaper.

I am deeply impressed as to how much you have found. It is so frustrating that they were touring abroad in 1881.