Welcome to Rootschat.
William and Margaret had at least eleven children: Jean (1775), James (1777), William (1779), John (1781), Mary (1783), Ann (1786), Thomas (1788), Janet (1792), John (1794), Margaret (1796) and Agnes (1800). The baptismal records of 1792 and 1794 decsribe him as a farmer, as do the death certificates of four of his children. In 1796 and 1800 he was decribed as a 'tenant'.
My main interest is in building up as complete a picture of his son Thomas's life as I can (he was an innkeeper/farmer), so I need to know a little about William's life inasmuch as it coincides with Thomas' early life; I have little interest in taking the tree back further.
I will send you a PM with my email address as you won't be able to send PMs until you have made a few more posts.
Richard