|James Sandilands, the eldest son, died v.p. 29 March 1580.
He married, first, Elizabeth, daughter of Robert Betoun of Creich (contract 21 May 1561); secondly, Isabel, daughter of John Strang of Balcaskie (contract 9 September 1569). The marriage took place, or was appointed to take place, 25 December 1569. She survived him and married, secondly, Ninian Bonar of Keltie.
By his frist wife he had
There may have been another daughter, Marjory, who died 19 May 1588, described as Lady St. Monans, wife of John Ramsay of Brackmonth.
- 1. Elizabeth, described in 1590 as the only surviving child of the marriage.
By his second wife he had
These are all mentioned in his will.
- 2. William, who succeeded his grandfather.
- 3. Christian.
- 4. Margaret.