I'm interested in making contact with anyone descended from two children born to William DUKE and Isobel BLACK, who married in Stracathro in 1779. William appears to have died a few years later and Isobel married Archibald Moir in Stracathro in 1786.
Ann DUKE, born Logie Pert in 1782 had an illegitimate child, William Mathers circa 1816. He married Helen Dakers in Brechin in 1839 and they had at least one child, Margaret.
Alexander DUKE born 1785 in Logie Pert married Margaret GLINDAY in Brechin in 1815 and was a sawyer in Brechin. They had 8 children in Brechin. Alexander died in Brechin aged 91 in 1876.
Their mother Isobel BLACK may have died in Brechin in 1821.