| OPUS | INST | LOCATION | CITY | STATE | COUNTRY | STYLE | WS |
| 2031 | A | 1ST REFORMED CH | PELLA | IA | USA | SCH32 | 1012 |
| 2031 | B | DON BORN RS | CHICAGO | IL | USA | SCH32 | 1012 |
| 2031 | C | MARTZ RS | ANTIOCH | IL | USA | SCH32 | 1012 |
| 2031 | D | HOKUM HALL (HOKUM W GEEBS) | SEATTLE | WA | USA | SCH32 | 1012 |
| 2031 | E | KENYON HALL (SAME PLACE AS AB | SEATTLE | WA | USA | SCH32 | 1012 |