Elizabeth Jane Coe
born 2 November–2 December 1910
  in Daisy Hill, Co. Durham
died April–June 1913
  in Chester-le-Street, Co. Durham

1911 census: living with parents and brother at Red Rows, Edmondsley. She is 4 months old and born in Daisy Hill.

1913: the death of an Elizabeth J. Coe is recorded in Chester-le-Street district in the June quarter of 1913 (10a625). This seems likely to be here given Margaret's comment below about her having died young (though the age isn't quite right).

Margaret Cozens: 'where this daughter fits in as regards birth year, I do not know. All I know of this child is that she only survived till she was 4 yrs old, and that she and Thomas Coe are buried in the church yard of Saint Peter's, Sacriston. Grandma Coe told me, but not the dates.'