Robert , 1st Baron of Kilmarnock Boyd
Robert , 1st Baron of Kilmarnock was born about 1270 in <Of Kilmarnock,Ayr,Scotland>.  He died in 1339 in Siege of Perth.

 Sir Thomas , 2nd Baron of Kilmarnock Boyd
Sir Thomas , 2nd Baron of Kilmarnock was born about 1298 in of Kilmarnock,Ayr,Scotland.  He died about 1333 in Battle of Halidon Hill,Berwick,Scot..

 Alan Boyd
Alan was born in Renfrewshire,Scotland.  He died in 1339 in perth,perth,Scotland.

 James Boyd
He died after 1342.