Church records Elton-cum-Creswell, Derbyshire
Born December 12 1913, baptism January 21 1914, Elsie Mabel Martin, parents Sydney and Clara Martin, abode 45 Duke? Street, father is a miner

In the 1921 census 45 Duke Street, Creswell Mansfield, Worksop, Nottinghamshire [Creswell is in the Bolsover district of Derbyshire]
Head Sydney Martin, age 32 years 4 months, born Sheffield, Yorkshire, coal miner (hewer) - Bolsover Colliery Co. Ltd, Creswell
Wife Clara Martin, age 31 years 10 months, born Pensett, Staffordshire, home duties
Illegitimate Daughter Clara Thorne, age 14 years 3 months, parents both alive, born Wordsley, Satffordshire, assist with home duties
Daughter Elsie Mabel Martin, age 7 years 6 months, parents both alive, whole time at school
Son Sydney Stanley Maurice Martin, age 5 years 2 months, parents both alive, born Creswell, Derbyshire, whole time at school
Son Wilfred Eric Martin, age 1 year 8 months, born Creswell