It is believed that the south transept or chantry was opened out from
the nave in the 14th Century and contained an altar dedicated to St
Margaret. However the rebuilding of the transept in the middle of the
19th Century destroyed the 14th Century features. The following extracts
are from the Vestry Book kept at that time:

28 June 1848. At a Parish Meeting held this day it was proposed by
Mr L Cobb, Churchwarden, to take down the arch on the south side of
the church and to insert two new ones, being an expense under £52,
which was agreed to on the understanding that the parish rate of 4d
in the pound should not be exceeded by this extra expense.

1852 June 30. At a Vestry held this day in the Church at Sheldwich,
for the purpose of taking into consideration the improvement of the
South chancel of the said Church..........The following alterations
were proposed to be made; W A Munn Esq. offers to build two new stone
Arches with flint and plastering thereto, also the alteration of pews
and removal of Pulpit and reading Desk, and erection of twelve Seats
for Children with the stone Paving, and also to remove the Front and
Stone (or is it Font and Stove?!) and to put in a plain Rose Window
at the west side of the Chancel including all materials and labour.
It is proposed for Lord Sondes to repair and point the external flint
work of the Chancel with new stones and quions to the three Buttresses
at a cost of seventeen Pounds, eight Shillings. The other work proposed
to be done , is to carry the present walls five feet higher, including
cost of refixing the present roof, retiling and Plastering the ....?....
and also plastering the inner Walls exclusive of Flints but including
all labour and other materials at a cost of £37 10s. Taking up,
recasting and relaying lead gutter with iron spouting and down pipes
£5 15s. Putting in two new south Windows as shown in the plan
£30 10s. Do. East Window £16 10s. It is proposed that this
sum be provided by the Parish, and the Flints and carriage by those
who keep Teams in proportion to their rate. If a new Oak roof is necessary,
it is proposed to be of Hemel Oak, at a cost of £24 for additional
materials and six Pounds for additional labour; it is proposed for Lord
Sondes to contribute £24 for Timber, and the labour £6 to
be paid out of the Church rate.

To summarise: about 150 years ago the south chancel (described in one
place as a lean-to with a low roof) was totally changed - higher roof/walls,
new windows, opening to the nave by two arches not one, the floor area
cleared and pews put in for children. The work was forwarded by Major
William Augustus Munn of Throwley House (opposite to the Church). Monuments
commemorate his father Col. Henry Munn and grandfather William Munn
of Blackheath, and Catherine his wife; his uncles Matthew William and
Captain Thomas Callis Munn, R N. In the aisle a stone commemorates Major
Munns children. The painted glass in three windows is by T Willement
of Davington. In the South East a memorial of Mary Elizabeth Munn. We
see Christ raising the widows son at Naim; Christ raising Jairus
daughter. In the South Western window Christ raising Lazarus; the Resurrection
of Christ - this window a memorial of Alice Harvey Munn. In the third
rose-shaped window are the arms of the Munn family. The floor of course
also contains a 15th Century monumental brass with the effigies of a
knight in armour (John Cely) and his wife Isabel.