"Civil Registration Index of England and Wales: 1837 - 1983", database, Free BMD Indexes, (http://www.freebmd.org.uk/, accessed Feb 9, 2015), Marriage, Helena M Mallett / William A Lucas, registered Dec 1918, Lambeth, London, England, volume 1d, page 601, 801, original record held by Office of National Statistics (ONS), General Register Office (GRO), UK.

• Title	"Civil Registration Index of England and Wales: 1837 - 1983", database, Free BMD Indexes, (http://www.freebmd.org.uk/, accessed Feb 9, 2015), Marriage, Helena M Mallett / William A Lucas, registered Dec 1918, Lambeth, London, England, volume 1d, page 601, 801, original record held by Office of National Statistics (ONS), General Register Office (GRO), UK.
  Repository	Free BMD Indexes
  Source ID	S460
  Linked to Individuals: 1	William Abell LUCAS
  Linked to Families: 1	Family: William Abell LUCAS / Helena Margaret MALLETT