Not clear on who his parents were in Scotland or wife name. Here are possibilities:
Alexander Mcallister
Scotland, Births and Baptisms, 1564-1950
christening: 14 June 1818 , KILMORY, BUTE, SCOTLAND
residence: Kilmory, Buteshire, Scotland
father: Angus Mcallister
mother: Mary Mckenzie
Alexander Mcallister
Scotland, Births and Baptisms, 1564-1950
christening: 1 November 1818 , KILMORY, BUTE, SCOTLAND
residence: Kilmory, Buteshire, Scotland
father: James Mcallister
mother: Catharine Mckenzie
Alexander Mcallister
Scotland, Births and Baptisms, 1564-1950
birth: 5 March 1818 GLASGOW, LANARK, SCOTLAND
father: Robert Mcallister
mother: Elizabeth Mcarthur
Alexander Mcallister
Head
England and Wales Census, 1851
birth: Scotland
residence: 1851 England
Alexander Macalister
Scotland Census, 1851
birth: 1819 Midlothian
residence: 1851 Kintyre, Argyllshire, Scotland
Alexander Mcalister
Scotland Census, 1851
birth: 1819 Buteshire
residence: 1851 Glencloy, Buteshire, Scotland
Alexander Mcallister
Father
District of Columbia Births and Christenings, 1830-1955
birth: Scotland
spouse: Janet Mather Mcallister
child: Mcallister
Alexander Mc Allister
Father
District of Columbia Births and Christenings, 1830-1955
birth: Scot.
spouse: Janet Mather
child: Mc Allister
Alexander Mc Allister
Father
District of Columbia Births and Christenings, 1830-1955
birth: Scot.
spouse: Janet Mother Mc Allister
child: Mc Allister
Alexander Mcallister
Father
District of Columbia Births and Christenings, 1830-1955
birth: Scotland
spouse: Janet Mathis
child: Mcallister