Hi again,
Well I can't find a death for Mary in 1924, but it looks like her husband may have died in 1924.

I can't quite read from the photo what it says.
Deaths Jun qtr. 1924
Shipton, Charles W., 53, Newark, vol. 7b: 467
Here is some census data to add to your information, in case you didn't have it:
1871 census: Foston, Lincolnshire (Ref: RG10/3544, Folio 42, Page 4)
George Dickinson, Head, Mar, 40, Carrier, Lincolnshire Long Bennington
Rebecca Dickinson, Wife, Mar, 27, Lincolnshire Foston
Miriam Dickinson, Daughter, 10, Scholar, Lincolnshire Long Bennington
Joseph L. Dickinson, Son, 9, Scholar, Lincolnshire Long Bennington
Levi D. Dickinson, Son, 5, Scholar, Lincolnshire Long Bennington
1881 census: Foston, Lincolnshire (Ref: RG11/3378, Folio 102, Page 6)
George Dickinson, Head, Mar, 50, Carrier & Cottager, Lincolns L. Bennington
Rebekah Dickinson, Wife, Mar, 38, Lincolns Foston
Levi D. Dickinson, Son, Unmar, 15, General Servant, Lincolns Long Bennington
Ruth A. Dickinson, Daur, 9, Scholar, Lincols Foston
Richard W. Dickinson, Son, 8, Scholar, Lincolns Foston
John A. Dickinson, Son, 5, Scholar, Lincolns Foston
Sarah A. Dickinson, Daur, 3, Lincolns Foston
Mary E. Dickinson, Daur, 1, Lincolns FostonMary E. Chilton, Servant, 14, Servant, Notts Balderton
1891 census: Great North Road, Foston, Lincolnshire (Ref: RG12/2715, Folio 91, Page 2)
George Dickinson, Head, M, 60, Carrier, Lincolnshire Long Bennington
Rebekah Dickinson, Wife, M, 45, Lincolnshire Foston
John Alfred Dickinson, Son, S, 15, Lincolnshire Foston
Sarah Alice Dickinson, Daughter, 13, Lincolnshire Foston
Mary Elizabeth Dickinson, Daughter, 11, Scholar, Lincolnshire FostonSamuel Herbert Dickinson, Son, 9, Scholar, Lincolnshire Foston
Edith Rebekah Dickinson, Daughter, 7, Scholar, Lincolnshire FostonMay Lilian Dickinson, Daughter, 5, Lincolnshire Foston
Percival Arthur Dickinson, Son, 2, Lincolnshire Foston
1901 census: Foston, Lincolnshire (Ref: RG13/3201, Folio 116, Page 2)
George Dickinson, Head, M, 70, Farmer & Carrier, Long Bennington Lincoln
Rebekah Dickinson, Wife, M, 55, Foston Lincoln
John A. Dickinson, Son, S, 25, Farmers Son, Foston Lincoln
Edith R. Dickinson, Daur, 18, Foston LincolnMay L. Dickinson, Daur, S, 15, Foston Lincoln
Percival A. Dickinson, Son, S, 12, Foston Lincoln
They had twelve children by my count...so lots for you to have fun following up.

Alexander