FreeREG has;
Samuel Cooper Banks bapt St Mary Magdalene, Bermondsey, Surrey
+ his Brother WILLIAM bapt same church 11 Jul 1819, same address, Father a Waterman
+ St Mary Magdalene, Woolwich, Kent*
JAMES COOPER 09 Dec 1807, birth 15 Nov 1807
ELIZABETH MARY 03 Feb 1815, birth 15 Jan 1815, Father a Waterman
You may already have the 1841 Census.
Lavender Place,
John Banks, 60, Waterman
Sarah, 58
William, 22, Apprentice Waterman