Relationships	Role	Relationship Start	Relationship End
M&I Llc	Parent	1/3/1991	4/30/2001
M&I Llc	Parent	12/31/1990	1/2/1991
M&I Llc	Parent	2/28/1988	12/30/1990
Central Wisconsin Bankshares, Inc.	Parent	12/31/1984	2/27/1988
Central Wisconsin Bankshares, Inc.	Parent	12/31/1982	12/30/1984
Central Wisconsin Bankshares, Inc.	Parent	12/31/1981	12/30/1982
Central Wisconsin Bankshares, Inc.	Parent	12/31/1980	12/30/1981
Central Wisconsin Bankshares, Inc.	Parent	2/16/1979	12/30/1980
M&I Eau Claire Investment Corporation	Subsidary	7/1/1991	4/30/2001
M&I Eau Claire Holdings, Inc.	Subsidary	1/1/1999	4/30/2001

Acquisitions & Mergers	Role	Assets	Acct Method	Type	Transaction Date
M&I Marshall And Ilsley Bank	Buyer	44,975,270	Pooling of Interests	Discontinued	5/1/2001
Pierce County Bank And Trust Company	Seller	111,481		Discontinued	8/1/1994
Valley Bank, Menomonie	Seller	190,478		Discontinued	8/1/1994
The State Bank Of Fall Creek	Seller	44,791		Discontinued	1/1/1984