The Helena National Bank
| Status: | Inactive as of 06/10/1994 |
| Merger - Without Assistance | |
| Successor Bank: | Gold BANK |
| Headquarters: | The Helena National Bank Main Street Helena, OK 73741 |
| Established: | 01/01/1901 |
| FDIC Insurance: | 01/01/1934 |
| FDIC Cert: | #4113 |
| Charter Class: | Commercial bank, national (federal) charter and Fed member, supervised by the Office of the Comptroller of the Currency (OCC) |
| Total Assets: | $18,533,000 |
| Total Deposits: | $16,399,000 |
History
| 1901-01-01 | Institution established: Original name:The Helena National Bank | |
| 1994-06-10 | Acquired The Helena National Bank in HELENA, OK | |
| 1994-06-10 | Acquired Citizens Bank of Wakita (9476) in WAKITA, OK | |
| 1994-06-10 | Merged into and subsequently operated as part of First Bank of Hennessey (413) in HENNESSEY, OK | |
| 1994-11-01 | Acquired The First National Bank of Guymon (4106) in GUYMON, OK | |
| 1997-09-22 | Changed name to People First (413) | |
| 1997-09-22 | Changed primary regulatory agency from COMPTROLLER OF THE CURRENCY to FEDERAL RESERVE BOARD | |
| 1997-09-22 | Acquired The Peoples National Bank (4128) in KINGFISHER, OK | |
| 1998-04-27 | Changed name to People First Bank (413) | |
| 1998-09-25 | Acquired Home State Bank (10676) in HOBART, OK | |
| 1998-11-06 | Acquired City Bank (24626) in WEATHERFORD, OK | |
| 1999-02-20 | Acquired First State Bank (17547) in HOBART, OK | |
| 2000-06-14 | Acquired PEOPLES FIRST BANK (17608) in ELKHART, KS | |
| 2000-11-11 | Acquired Citizens Bank of Tulsa (23349) in TULSA, OK | |
| 2000-11-11 | Acquired American Heritage Bank (23348) in EL RENO, OK | |
| 2000-11-11 | Changed name to Gold BANK (413) | |
| 2004-04-03 | Merged into and subsequently operated as part of Gold Bank (13155) in LEAWOOD, KS | |
| 2004-09-01 | Acquired Gold Bank (27501) in BRADENTON, FL | |
| 2006-04-03 | Merged into and subsequently operated as part of M&I Marshall and Ilsley Bank (1020) in MILWAUKEE, WI | |
| 2007-06-27 | Acquired United Heritage Bank (57108) in ORLANDO, FL | |
| 2007-08-01 | Acquired Excel Bank Minnesota (19355) in MINNEAPOLIS, MN | |
| 2008-02-02 | Acquired First Indiana Bank, National Association (29057) in INDIANAPOLIS, IN | |
| 2010-07-01 | Acquired Southwest Bank, An M&I Bank (1081) in SAINT LOUIS, MO | |
| 2011-07-05 | Changed name to BMO Harris Bank National Association (16571) | |
| 2011-07-05 | Acquired M&I Marshall and Ilsley Bank (1020) in MILWAUKEE, WI | |
| 2011-07-05 | Acquired M & I Bank NATIONAL ASSOCIATION (28923) in LAS VEGAS, NV | |
| 2011-07-05 | Acquired The Harris Bank National Association (24960) in SCOTTSDALE, AZ | |
| 2011-07-05 | Merged into and subsequently operated as part of BMO Harris Bank National Association (16571) in CHICAGO, IL | |
| 2012-02-07 | Reorganized. | |
| 2012-02-09 | Reorganized. | |
| 2012-04-20 | Reorganized. | |
| 2012-05-01 | Reorganized. | |
| 2012-06-01 | Reorganized. | |
| 2012-07-01 | Reorganized. | |
| 2012-08-01 | Reorganized. | |
| 2012-09-01 | Acquired M&I National Trust Company (34833) in MILWAUKEE, WI | |
| 2012-09-04 | Reorganized. |