0000708955-03-000051 4 1 20030408 20030409 FIRST FINANCIAL BANCORP /OH/ 0000708955 6021 311042001 OH 1231 4 34 000-12379 03643965 300 HIGH ST HAMILTON OH 45011 5138674700 300 HIGH ST HAMILTON OH 45011 ALDERSON RICHARD L 0001167390 DIRECTOR 4 C/O FIRST FINANCIAL BANCORP 300 HIGHSTREET PO BOX 476 HAMILTON OH 45012 5138674951 8222 LESOURDSVILLE WEST CHESTER ROAD WEST CHESTER OH 45044 4 1 april03form4.txt APRIL03FORM4