Lawrence was born sometime about 1690 (based on his gravestone) in the Westhoughton area. He married Alice Coupe (MM024) on the 12 January 1719 at St Mary the Virgin, Deane-by-Bolton and they had the following children:
- John (LM054) born 30 Jun 1728, died 1803;
- Richard (LM031) born 1728, died 1732;
- Anna (LM032) born 1730;
- Mary (LM057) born about 1731, died 1731;
- Lawrence (LM033) born 1733, died 1813;
- Alice (LM056) born 1735.
For each child’s baptism the place of residence is noted at Rumworth which is between Westhoughton and Bolton.
Lawrence died on 8 August 1771 and was buried at the church of St Mary the Virgin in Deane-by-Bolton in grave 787 which says
“Here is interred the body of Laurance Mangnall of Westhoughton who departed this life upon the 8th day of August 1771 and in the 82nd year of his age. Also Nancy wife of John Mangnall died Aug 28th 1816 “