The only Martin Lawless shown in available parish registers for Ireland, born about 1820, was from Galway, which is on the other side of Ireland from Wexford: about 170 miles away and unlikely to have been this Martin.
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At the time of the 1851 England Census Martin Lawless, age 31, born in Wexford Ireland, tailor & grocer, and wife Sarah, age 33, born in Lindfield Sussex, were living at 53 Church Street Brighton, Sussex. Present were children: James, age 9, born in Kingston Dublin, scholar, and born in Brighton Sussex: Martin, age 7, scholar, Sarah, age 5, scholar, Catherine, age 3, and Elizabeth, age 1.
At the time of the 1861 Census Martin Lawless, age 41, born in Ireland, tailor, and wife Sarah, age 45, born in Brighton Sussex, were living at 63 West Street Brighton Sussex. With them were children (born in Brighton): Martin (16), tailor, Sarah (14), Catherine (12), Elizabeth (10), Terisa (8), Thomas (5).
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Martin Lawless died aged 51 years.
The Will of Martin Lawless late of West-street Brighton in the county of Sussex, tailor, who died 17 September 1870 at West-street was proved 27 February 1871 at Lewes by Sarah Lawless of 63 West-street, widow, the relict, the sole executrix. Effects under £200. 2