Margaret was born in 1817 to James Darling Watt and Mary Ann Wood. She was christened on 27 October 1817 in Manchester, Lancashire, England.

      She married John Moss Brandreth on 22 Feb 1840 at the Minster Church of St John the Evangelist on Church Street, Church of England in Preston, Lancashire, England.

St. John's Minister Church
Where Fishergate meets Church Street stands St. John's Minister Church. The current building was built in the 19th Century. When Preston became a city, the church was titled Preston Minster. This picture is dated 1857 by E. Beattie

• John Moss Brandreth was born on 25 Dec 1840 in Saint John's Preston, Lancashire, England and died when a child.
• Margaret Brandreth was born on 12 Jun 1842 in Saint John's Preston, Lancashire, England. Margaret married James Rogerson on 23 Apr 1863.
• John Moss Brandreth was born on 31 Mar 1844 in Saint John's Preston, Lancashire, England. John married Jane Tattersal on 5 Dec 1867. Jane was born about 1846 in Clitheroe, Lancashire, England. Children from this marriage were:
       i. Janet Brandreth was born in 1872 in Preston, Lancashire, England.
       ii. George Brandreth was born in 1874 in Preston, Lancashire, England.
• Jenet Brandreth was born in 1846.
• James Watt Brandreth was born on 30 Apr 1848 in Saint John's Preston, Lancashire, England and died in 1852 at age 4.
• Mary Ann Bridget Brandreth was born on 27 Apr 1851 in Saint John's Preston, Lancashire, England and died when a child.
• Mary Ann Bridget Brandreth was born on 30 Jan 1853 in Saint John's Preston, Lancashire, England. Mary married Richard E. Kellett on 28 Apr 1888.
• Emily Jane Brandreth was born on 30 Jan 1855 in Saint John's Preston, Lancashire, England.
• Fanny Amelia Brandreth was born on 16 Oct 1857 in Saint John's Preston, Lancashire, England.
• George Edward Brandreth was born on 25 Jul 1859 in Saint John's Preston, Lancashire, England. George married Margaret Ditchdield about 1887 in Wigan, Lancashire, England. Margaret was born about 1854 in Wigan, Lancashire, England. Children from this marriage were:
        i. John Moss Brandreth was born about 1889 in Wigan, Lancashire, England.
        ii. Charles Watt Brandreth was born in 1891.
        iii. Fanny Amelia Brandreth was born about 1894 in Wigan, Lancashire, England.
        iv. George Edward Brandreth .
• James Watt Brandreth was born on 3 Jun 1861 in Saint John's Preston, Lancashire, England.