Thank you both.

I think you have cracked it. He is the same age as John/Jack ,great. Now with a Surname, at least someone may be able to claim him .
The passenger list only seems to be some of the Family maybe Father Charles had precededed them and some of the kids stayed in England and they took some of the other Barnes kids from Chilham . Have to onvestigate that enigma now.
Here is Sam with his family in 1901 living at. 4, Mountain Street ,Chilham .
BARNES, Charles Head Married M 29 Journeyman Baker Ashford Kent
BARNES, Eliza Wife Married F 32 Chilham Kent
BARNES, Elia Daughter 7 Kennington Kent
BARNES, Saml Son 5 Chilham
BARNES, Edwin Son 3 Chilham
BARNES, Isabella Daughter 2 Chilham
BARNES, William Son 1 Chilham
BARNES, Percy Son 1 Month Chilham