Ok technically Mary Ann was a Pearce because she was born before her Parents married 31 Jan 1836.
Baptism;
From FreeREG;
28 February 1836, St Mary the Virgin, Goudhurst
MARY ANN Hope, Parents THOMAS/ANN, Fathers occp Labourer
Birth 24 December 1835****
Other Children;
LUKE 26 Nov 1837
ALFRED 1840, 8 Sept 1840, buried 15 Oct age 1mth
Cant find what happened to Luke.
ELIZA Peirce Bap same Church, 11 Sept 1831, birth 16 Aug 1831
Parents CHARLES/ANN
Father a Labourer
CHARLES Peirce buried same Church 24 Nov 1833 age 24**
Possible Marriage on Familysearch.Org
Charles PEARCE to Ann GOLDING, 23 May 1829 Boughton Monchelsea, Kent
Looks good;
Gro Index;
HOPE, ALFRED, Mothers mn GOLDEN****
GRO Reference: 1840 D Quarter in THE CRANBROOK UNION Volume 05 Page 7