Lilian was born in Northumberland on 23rd December 1895 and began writing poetry at an early age.
During WW1, both Lilian and her cousin Elizabeth, who went on to become Queen Elizabeth, wife of King George VI, helped look after wounded soldiers at Glamis Castle, which her Uncle Claude has inherited in 1904 on the death of her grandfather, the 13th Earl of Strathmore. Lilian's brother, Charles, an officer in the Black Watch Regiment, was killed on the Western Front on 23rd October 1914.
Lilian's care of the wounded continued in the Second World War, when she lived in Stepney in the East End of London and took care of the victims of bombing raids.
Lilian wrote seven anthologies of poetry and two novels, never married and continued writing poetry until her death in 1949.