The following info is taken from the Crawfordjohn booklet available from;
www.crawfordjohn.orgDeaths recorded on gravestones:
Janet Somerville 1832 - married to James Colthart
Thomas Somerville 1899 - son of John Somerville and Mary Hoatson
Christina Sommerville 1886 - married to Robert Waton
William Sommerville 1927 - married to Mary Black
John Somervail 1828 - married to Elizabeth Gall
Thomas Somervail 1861 - married to Barbara Thomson
Mary M Somerville 1965 - married to William Gray
Andrew L Somerville 1988 - married to Margaret Lawson
Information fro morth cloth indexes:
1781 Hugh Somerveil
1779 Hugh Somervel - his wife
1779 Thomas Somervell - his mother
1829 James Somerville - pail
1828 John Somerville - mortcloth
1782 Elizabeth Sommerveil
1760 Thomas Sommerveil - his corps
1816 Thomas Sommerveil
1803 Thomas Sommervelle
Hope this of interest.
Jess