Gilly,
The following is the result of the research I did about 3 years ago.
John Andrews 1721-1808 of Comber married Mary Corbitt, daughter of Michael Corbitt of Newtownards in 1746. John rented a linen bleach green and also a flour mill. He and Mary had at least six sons.
1. Thomas Andrews 1747-1809 of Belfast
2. Michael Andrews 1749-1805 of Castlewellan who married Elizabeth Meek in 1779
3. John Andrews 1751-1770 of Comber
4. Robert Andrews b1757
5. William Andrews 1761-1784
6. James Andrews 1762- 1841. He was the father of John Andrews of Comber and was my interest in the family.
The Michael Andrews above had 3 sons.
1. Thomas John Andrews 1781- 1842 who married Elizabeth Stevenson in 1813
2. George Miller Andrews 1785-1860 who lived in Jamaica.
3. Michael Andrews 1788- 1870 of Ardoyne House, Edenderry. He married three times, first to Sarah McWilliam in 181o and when she died in 1813 he married Margaret McCammon in ind 1817 and when she died in 1844 he married Elizabeth Ormiston in 1845. She died in 1900.
More detail of some of the early family can be found in
http://www.comberhistory.com/chsandrewsfamily.htm Another researcher sent me the details of a headstone in Clifton street Burial ground. (it's rather long)
Sacred to the memory of Thomas Andrews of Belfast who died on 10 Jun 1809 and of his widow Anne Forde who died 1814. Also of Elizabeth Meek who died 15 March 1841 relict of Michael Andrews of Castlewellan who is interred in Wigton, England where he died in 1805
Dedicated by Michael Andrews of Ardoyne, to the memory of his wife Sarah D. McWilliam who departed this life 11 Dec 1813 and their two children, Michael, deceased 5 Feb 1814 and Thomas, deceased 24 Aug 1829. Also of his second wife, Margt McCammon, died 20 Mar 1844 and theur son Joseph died in the USA june 1855. Also of Isaac Robert, son of Michael and Eliza Ormiston Andrews who died 19 May 1867 aged 14 Years. Here also are interred the mortal remains Michael Andrews, Ardoyne, died 20 Dec 1870 aged 82 years also Thomas Corbitt Andrews, son of the above died 30 Apr 1875 aged 25 years. And here also Eliza Ormiston Andrews, widow of Michael Andrews, Ardoyne, who died 19 Oct 1900 aged 87 years. George, Their younger son died 3 Jul1920 ahed 66years and his wife Eugenie died 28 Nov 1836 aged 80 years.
Dedicated to the memory of Thomas John Andrews who departed this life 16 Jan 1842. Also his son Wm S Andrews who died 4 Oct 1858 aged 38 years and of his widow Elizabeth Andrews who died 12 Feb 1859 aged 69 years. And of Jane Hardie Johnston Andrews, daughter of Thomas Andrews MD> FRS. born 30 Nov 1849 died 7 Aug 1861. Michael Andrews died 15 May 1889 aged 70 years. Also his daughter Isabella Jane Johnston Andrews died 27 Dec 1870 aged 12 years. Jane Johnston Andrews Daughter of the above Thomas John Andrews and Elizabeth Andrews died 5 Feb 1897 aged 81 years. Margaret Andrews, wife of the above Michael Andrews died 14 Oct 1905 aged 85 years. Also their son Randal W J died 3 Jan 1906 aged 50 and was interred in Paris.
Regards