Isabella Fea Peace married John Grant from Bower, Caithness.  They had children:

• Janet Grant (b. 1828)
• Robert Davidson Grant (b. 1830) who married Ann Bain from Westray.  They were living in Westray at least from the time of the 1861 census.
• Lexy Leith Grant (b. 26th February 1839, d. October 1840)
• Ann Traill Grant (b. 1835) who married James Symington in 1858.  He died in 1872 and she remarried James's business partner in Leith, Henry Mouncey Barker.
• Isabella Sherar Grant (b. 1842)
• John Grant (b. circa 1845)