John S Slattery List of directors and agents named John S Slattery. Found 2 results. JOHN S. SLATTERY Registered Address: 3 TURNER WOOD COURT BALDWIN MD 21013 Appointed in one company. Go To Profile JOHN S. SLATTERY Registered Address: RT. 1, BOX 147-A QUEENSTOWN MD 21658 Appointed in one company. Go To Profile