they did have a merger in 2001
http://phx.corporate-ir.net/phoenix.zhtml?c=101159&p=irol-newsArticle&ID=152014&highlight=SEATTLE--(BUSINESS WIRE)--Feb. 13, 2001--
Strengthens Texas Presence; Extends National Banking and Lending Franchises
With the merger of its banking subsidiaries completed, Washington Mutual, Inc. (NYSE:WM) today announced the company has finished the final phase of its merger with Houston-based Bank United Corp.
The merger gives Washington Mutual a top-tier retail banking market share in three of the four largest metropolitan markets in the state of Texas, and extends the company's national lending platform.
"The addition of Bank United significantly expands the size and scope of our Texas presence, and brings more depth and scale to our national banking and lending franchises," said Kerry Killinger, the company's chairman, president and chief executive officer. "We're delighted to welcome the Bank United team to Washington Mutual and look forward to serving the great state of Texas with an even larger network."
...more...
Here's a good link giving lots of Washington Mutual background:
http://www.topix.net/com/wmshows lots of their layoffs:
http://www.topix.net/redir/loc=story65/http=3A=2F=2Fsanantonio.bizjournals.com=2Fsanantonio=2Fstories=2F2003=2F12=2F08=2Fdaily16.html=3Fjst=3Db_ln_hlWashington Mutual to eliminate 5,400 home mortgage jobs
San Antonio Business Journal - December 9, 2003 -
The Seattle-based financial services company says it already eliminated 4,500 positions ...