1 of 6 Tombs in Churchyard of St Mary and St Thomas D to Marion Mackinnon Buchanan is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 21 March 1984. Tomb.

1 of 6 Tombs in Churchyard of St Mary and St Thomas D to Marion Mackinnon Buchanan

WRENN ID
lunar-forge-reed
Grade
II
Local Planning Authority
North Hertfordshire
Constituency
Stevenage MP: Kevin Bonavia (Lab)
Country
England
Date first listed
21 March 1984
Type
Tomb
Address
1 of 6 Tombs in Churchyard of St Mary and St Thomas D to Marion Mackinnon Buchanan, Old Knebworth Lane
OS grid reference
TL 230 209
Coordinates
51.87374, -0.21368
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

This is one of six tombs located in the churchyard of St Mary and St Thomas in Old Knebworth. The tomb, dedicated to Marion Mackinnon Buchanan, dates from 1939 and is attributed to the architect Sir Edwin Lutyens. It features a large slab made of Portland stone with a triangular head and an aperture that contains a cross. There is an inscription below the cross, with arisses inset on either side.

Local climate

1 of 6 Tombs in Churchyard of St Mary and St Thomas D to Marion Mackinnon Buchanan sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 84% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 77% of listed buildings.

It experiences an average of 36 freeze-thaw cycles a year, more than 61% of listed buildings. Of these, 17 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

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