| Relationships | Role | Relationship Start | Relationship End |
| Mcorp Financial Inc | Parent | 10/10/1984 | 3/28/1989 |
| Mcorp | Parent | 12/30/1976 | 10/9/1984 |
| Federated Capital Corporation | Parent | 1/29/1974 | 12/29/1976 |
| Federated Texas Bancorporation, Inc. | Parent | 5/1/1973 | 1/28/1974 |
| Alamo Bancshares, Inc. | Parent | 3/29/1971 | 4/30/1973 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank One, Texas, National Association | Buyer | 31,498,941 | Failure | 3/29/1989 | |
| Mbank San Antonio South, National Association | Seller | 40,462 | Discontinued | 3/4/1988 | |
| Mbank San Antonio North, National Association | Seller | 54,177 | Discontinued | 3/4/1988 | |
| Mbank Travis Park | Seller | 106,725 | Discontinued | 12/31/1984 |