On 19 Apr 1900 William Henry Forester Denison 1st Earl Londesborough (age 65) died. His son William Henry Francis Denison 2nd Earl Londesborough (age 35) succeeded 2nd Earl Londesborough in Yorkshire, 3rd Baron Londesborough of Londesborough in the East Riding of Yorkshire. Grace Adelaide Fane Countess Londesborough (age 39) by marriage Countess Londesborough in Yorkshire.

In 1917 William Henry Francis Denison 2nd Earl Londesborough (age 52) died. His son George Denison 3rd Earl of Londesborough (age 24) succeeded 3rd Earl Londesborough in Yorkshire.

On 12 Sep 1920 George Denison 3rd Earl of Londesborough (age 28) died unmarried. His brother Hugo Denison 4th Earl of Londesborough (age 25) succeeded 4th Earl Londesborough in Yorkshire.

On 17 Apr 1937 Hugo Denison 4th Earl of Londesborough (age 42) died. He was buried at St Oswald's Church, Blankney. The Earl had become ill and it was decided to to move him to London for treatment; he died on the journey. Earl Londesborough in Yorkshire extinct. The impact of death duties necessitated the sale of Blankney, Lincolnshire to Mr William Parker of Norfolk. The Countess, Marigold Lubbock Countess Londesborough (age 33), and her daughter Zinnia Rosemary Denison, continued to live on the estate.

Hugo Denison 4th Earl of Londesborough: On 13 Nov 1894 he was born to William Henry Francis Denison 2nd Earl Londesborough and Grace Adelaide Fane Countess Londesborough. On 12 Sep 1920 George Denison 3rd Earl of Londesborough died unmarried. His brother Hugo Denison 4th Earl of Londesborough succeeded 4th Earl Londesborough in Yorkshire. On 07 Sep 1935 Hugo Denison 4th Earl of Londesborough and Marigold Lubbock Countess Londesborough were married at St Oswald's Church, Blankney. He the son of William Henry Francis Denison 2nd Earl Londesborough and Grace Adelaide Fane Countess Londesborough. The Scarlet Tree by Osbert Sitwell Chapter 2. That was the last time I saw Blankney — except once more, in a dream, a singular incident which I will relate. And since it concerned my cousin Hugo, whose marriage I had attended that summer afternoon some two years before, I must first explain that though we had always been friendly when we met, of recent years I had not seen much of him, for I was often abroad, while all his interests, hunting and racing, were of a different kind from mine and tended to keep him in the country .... It occurred in the early spring of 1937, when I was living in a villa near Vevey, on the Lake of Geneva. One night I was very restless, waking up at about two, and finding myself unable to get to sleep again for hours Eventually, about 6.30 in the morning, I fell into a long, troubling and involved dream, which yet did not the realm of nightmare. In it, I was in the Saloon at Blankney again, and Hugo, the owner of it, was talking to me very urgently. His words were simple enough, but laden with a weight of presage, and of sad and menacing feeling, and I knew that in his last sentence he was conveying to me something importance. He said, "There will be a party here at Blankney in ten days' time. All the relations are coming. They arrive by special train in the morning, and leave by special train in the afternoon." .... Then I woke up ; to find I was being called by my servant. He handed me The Times of the previous day — it always arrived in Vevey twenty-four hours after it had come out in London. I sat up, still unreasonably distressed, opened the paper — and the first heading that caught my eye as I did so was Serious Illness of Lord Londesborough .... It was impossible to misapprehend so clear a portent, although in my dream seen in reverse: but I still hoped that I might be wrong, because I knew that all the members of Hugo's family had hitherto been buried at Londesborough, and this detail, so incorrect, seemed to falsify my reading of it. Howbeit, I was still so much oppressed by the feeling of the dream, that I told two friends, who were staying with me at the time, of it and of the sequel in the paper .... For a while it appeared that Hugo was better, but a week later he died, and three days after that was buried at Blankney.

Marigold Lubbock Countess Londesborough: On 15 May 1903 she was born to Edgar Lubbock.

Zinnia Rosemary Denison: On 25 Nov 1937 she was born to Hugo Denison 4th Earl of Londesborough and Marigold Lubbock Countess Londesborough. She was born posthumously her father having died six months before her birth. On 13 Jul 1997 Zinnia Rosemary Denison died.