Hello Bev,

The only other Baptism I have found for a William Watterson with a Father, John, is,

William Watterson
Date/Epithet 20 June 1869 German
Abode Peel
Parents: John Watterson (mariner) & Jane Watterson (née Cregeen)

and 2 Marriages with a Father named John.

Marriages

William Watterson
Date/Epithet 27 October 1909 German
Biography
Married: Catherine Jane Teare. Groom's marital status:bachelor. Groom's father: John Watterson. Groom's mother: not stated. Bride's marital status: spinster. Bride's father: Thomas Teare. Bride's mother: not stated. (MS10974-3-6)

William James Watterson
Date/Epithet 2 January 1901 Patrick
Biography
Married: Edith Jane Gell. Groom's marital status:bachelor.
Groom's father: John Watterson. Groom's mother: not stated. Bride's marital status: spinster. Bride's father: John Gell.
Bride's mother: not stated. (MS11436-1-1)

Both stated as Bachelors.

I will search the Census for them.

Averil