On 04 May 1859 Francis Godolphin Osborne 7th Duke Leeds (age 60) died. He was buried at the Osborne Family Chapel All Hallows' Church Harthill [Map]. His first cousin George Godolphin Osborne 8th Duke Leeds (age 56) succeeded 8th Duke Leeds, 8th Earl of Danby, 8th Viscount Osborne, 8th Viscount Latimer, 8th Baron Osborne of Kinderton, 9th Baronet Osborne of Kiveton. Harriet Emma Arundel Stewart Duchess Leeds by marriage Duchess Leeds. His nephew [her father] Sackville George Lane-Fox 15th Baron Darcy of Knayth 12th Baron Conyers (age 31) succeeded 15th Baron Darcy of Knayth, 12th Baron Conyers.

On 06 Feb 1875 Charles Anderson-Pelham 3rd Earl Yarborough (age 40) died. His son [her future husband] Charles Alfred Worsley Anderson 4th Earl Yarborough (age 15) succeeded 4th Earl Yarborough, 5th Baron Yarborough.

On 24 Aug 1888 [her father] Sackville George Lane-Fox 15th Baron Darcy of Knayth 12th Baron Conyers (age 60) died. Baron Conyers and Baron Darcy of Knayth abeyant between his two daughters Marcia Amelia Mary Lane-Fox Countess Yarborough (age 24) and [her sister] Violet Ida Evelyn Lane-Fox Countess Powis (age 23).

On 30 Oct 1914 [her son] Charles Pelham (age 27) was killed in action.

On 06 Jul 1920 [her sister-in-law] Gertrude Augusta Anderson-Pelham (age 59) died.

On 12 Nov 1921 [her mother] Mary Curteis died.

On 17 Nov 1926 Marcia Amelia Mary Lane-Fox Countess Yarborough (age 63) died. Her son [her son] Sackville Pelham 5th Earl of Yarborough (age 37) succeeded 14th Baron Conyers, 8th Baron Fauconberg.

On 12 Jul 1936 [her former husband] Charles Alfred Worsley Anderson 4th Earl Yarborough (age 77) died. His son [her son] Sackville Pelham 5th Earl of Yarborough (age 47) succeeded 5th Earl Yarborough, 6th Baron Yarborough.