I need to file a trust return (irrevocable trust for deceased person). I need to know which state to file along with the federal return

Trust was created in Michigan.  The funds were held in an Edward Jones account (mutual funds, bonds, etc).  The grantor moved to California and was living there when he passed away.  The trustee (me) lives in Michigan.  There are 2 beneficiaries in Michigan, 2 in Oregon, and 1 with no fixed address (has a PO Box in Texas).  What state return(s) do I file?