I am trying to fnd out what happened to William Tully and Mary (Margaret) Brown who flourished in South Leith Midlothian, Scotland around 1808-1830+

William Tully's profession was listed as a Tailor between 1808-1825. Located at the back of the vaults, Giles Street, Leith, Edinburg. At one time, he was listed as being a seaman.

They had six children

Isabella Tully (known)

John Tully (known)

Elizabeth Tully (unable to trace)

Thomas Brown Tully (lineage found)

John Brown Tully (lineage known)

William Brown Tully (unable to trace)

Were William Tully and Mary (Margaret) Brown native to Scotland or were they from Ireland or England. I cannot find a marriage/bond notice let alone a death notice for them.

I have tried to trace them but have had no success. Can anyone please help me?