| Relationships | Role | Relationship Start | Relationship End |
| Ifrb Corporation | Parent | 6/6/1987 | 7/29/1988 |
| Interfirst Corporation | Parent | 7/1/1977 | 6/5/1987 |
| Park And Bowie Corporation | Parent | 12/31/1970 | 1/12/1975 |
| Park And Bowie Corporation | Parent | 1/13/1959 | 12/30/1970 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Nationsbank Of Texas, National Association | Buyer | 62,921,254 | Failure | 7/30/1988 | |
| First Republicbank Nederland | Seller | 93,082 | Discontinued | 11/7/1987 | |
| Interfirst Bank West Beaumont, National Association | Seller | 8,620 | Discontinued | 1/20/1986 |