My boyfriend had a job at Station casino in Kasas city Missouri For 5 and a half years and I need to find it so that when I get another good paying job I can add to it but also at this time need to find a way to withdraw a small amount for financial troubles.

If your name isn't on the account then there is nothing you can do... much less withdraw anything.

He of course can, but the way you phrased your question it appears YOU want to do it...

But he would have to contact Merill Lynch himself... show his proof of identity... and they would look it up.

I am assuming he is not deceased and you were not listed as a benificiary.

If he has funds with any investment firm, he should be getting regular statements. If not, its possible the account was dormant and transferred to the state on MO's escheat laws.

This site may help:
Missouri State Treasurer Clint Zweifel - Unclaimed Property - Missouri's Largest Lost and Found

Check with Merrill Lynch first.