Hi Straea sorry its taken so long, but nothing on your ancestors,
Elizabeth (Dewar) Anderson - died 24 Apr 1855 in Sinclairtown/St Clairtown at age 69.  (She was widowed for a while before her death and I believe her husband is likely buried in Edinburgh where they lived before he died)
Nothing in Index ( did she have any children in Dysart )
 
Robert Anderson - died 21 Apr 1869 in Pathhead at age 57. 
Wife Margaret (Deas) Anderson - died 31 Mar 1877 in Pathhead at age 66.
Nothing on index
Margaret's parents - 
John Deas, died 5 Aug 1871 in Dysart, age 91. 
Margaret (Page) Deas, died 27 Sep 1855 in Dysart.
Nothing on index
Margaret's twin sister - 
Rachel (Deas) Anderson, died 22 Jan 1891 in Dysart, age 80.
Husband John Anderson, died 2 Aug 1855 in Dysart, age 48.
Nothing on index
Norrie