The next window faces you as you enter via the main door and is the east window of the Chancel, of Great East Window as it had sometimes been described.

It was originally a large clear diamond leaded window and was partly destroyed in 1828 when Burn, the architect, shortened it to build his entrance.

Henderson in 1905 restored it installing this great window by Alexander Ballantine and Son, costing approximately £190. This window is commonly mistaken as showing part of "The Last Supper" but it actually shows the "Supper at Emmaus." It was to Emmaus that the risen Lord had travelled with Simeon and Cleopas and he was only recognised when he broke the bread.

Its inscription reads "He was known of them in the breaking of the bread." And this is how he identified himself to them. The window also has the inscription, "In loving memory of John Dickson of Corstorphine and Elizabeth Anne Traquair his wife dedicated by their two sons 1904."

John Dickson was a farmer who came from Berwickshire to Saughton Mains about 1840. He eventually bought the Corstorphine Estate from Dick of Prestonfield in 1869, Elizabeth Anne Traquair was his first wife. Traquair Park is named after her family. 

Their sons John Heatley Dickson and William Traquair Dickson were very supportive of the Church. John was Chamberlain to the Duke of Buccleuch and married into the family of Collins the Publisher. William was a writer to the signet and a prominent person in the 1905 Old Parish Restoration. The Dickson family were the last owners of the Corstorphine estate and on the death William Traquair W.S., a grandson of John Heatley Dickson, the Corstorphine Estate Papers were gifted to The Corstorphine Trust. This family tree also shows, John’s second wife Mary Hannay, and their son Peter Hannay Dickson and his wife already mentioned in connection with "The Sower & The Reaper" window in the South Nave.

In the tracery above this window are two shields. One shows the Lamb with the flag, symbolic of John the Baptist. The other has the pelican that feeds its young from the blood of its breast, it is symbolic of Christ and his Church. (St.Luke Chapter 24 v35)