Llewellyn
On the 1861 Census, there are two James Izatt showing, both age 6. Either one could potentially be yours. One is in DUNFERMLINE LANDWARD/FIFE and the other is in RUTHERGLEN, GLASGOW CITY/LANARK.
I also noticed there is a marriage on IGI between a James Izatt and an Elizabeth Izatt, an actual extract from the OPRs:
ELIZABETH IZAT Marriages: Spouse: JAMES IZAT
Marriage: 27 NOV 1843 Clackmannan, Clackmannan, Scotland
These are the children showing for this couple, including a James:
1. GEORGE IZATT Birth: 19 FEB 1844/ Christening:14 APR 1844 Clackmannan, Clackmannan, Scotland
2. JAMES IZATT Birth: 12 DEC 1858 Dunfermline, Fife, Scotland
3. WILLIAM IZATT Birth: 02 DEC 1860 Dunfermline, Fife, Scotland
4. WILLIAM IZATT Birth: 02 APR 1856 Saline, Fife, Scotland
Regards.
Monica