| Relationships | Role | Relationship Start | Relationship End |
| New Galveston Company, The | Parent | 12/19/1989 | 11/4/1993 |
| Cullen/Frost Bankers, Inc. | Parent | 7/7/1977 | 12/18/1989 |
| Cullen Bankers, Inc. | Parent | 6/2/1975 | 7/6/1977 |
| Cullen Blp, Inc. | Subsidary | 2/28/1985 | 11/4/1993 |
| Carton Service Corporation | Subsidary | 8/1/1981 | 3/31/1984 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Frost Bank | Buyer | 29,633,441 | Discontinued | 11/5/1993 | |
| Cullen Bank Sugar Land | Seller | 67,668 | Discontinued | 12/15/1989 | |
| Cullen Bank/Citywest, National Association | Seller | 35,176 | Discontinued | 12/8/1989 | |
| Cullen Bank Northfield, National Association | Seller | 20,212 | Discontinued | 11/17/1989 |