Many thanks for looking Jane.
I've taken this from the Felbridge Family History Site:
'The Pattenden family originate from East Peckham in Kent and moved to the area when Samuel Pattenden married Elizabeth Waggone in East Grinstead in 1713. William Pattenden descends from John, a grandson of Samuel and Elizabeth, being born in 1786, one of twelve children of John and Elizabeth Pattenden [for further details see Handout, Pattenden family of Felbridge, SJC06/01].
William Pattenden married Amelia Dearling on 21st October 1814 in East Grinstead, and Amelia had been born in Horne in Surrey in 1791. William and Amelia had eight children, Amelia born in 1815, George born in 1818, James born in 1820, John born in 1823, Stephen born in 1825, Thomas born in 1830 and Caroline born in 1836. Daughter Amelia was born in Lingfield, George in Felbridge, Godstone, and the remaining six children in East Grinstead.
William Pattenden and his family were living at the site of the Brewery/Beer Shop on East Grinstead Common by 24th October 1820 when William purchased a copyhold property (part of ‘Mercers’ of the manor of Imberhorne) from Maurice Halford Barrow, gentleman of East Grinstead, for the sum of £350. At the time of purchase William Pattenden was listed as a yeoman, which is defined as a prosperous working farmer, and the property he purchased was described as ‘3 acres but now measured 4 acres 1 rood 7 perch upon which a tenement has some years been built’, implying that at sometime some encroachment and enclosure of the East Grinstead Common may have occurred'.
And so it's quite possible that the Pattenden's were still at or near 'Mercers' by the time of the 1841 Census.
Romilly.