| Relationships | Role | Relationship Start | Relationship End |
| Ifrb Corporation | Parent | 6/6/1987 | 7/29/1988 |
| Interfirst Corporation | Parent | 12/31/1973 | 6/5/1987 |
| Sealy & Smith Foundation | Parent | 12/31/1970 | 12/30/1973 |
| Sealy & Smith Foundation | Parent | 7/27/1958 | 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 |