| Source: St. John's Orphanage Edition of The Messenger. History of the Diocese of Belleville (Belleville, Illinois: Published by Joseph Nicholas Buechler, [1919]). Location: Oversize / IL / 9.11 / B41b2 | |
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| Last Name: | Koesterer |
| First Name: | Cletus |
| Middle Name: | Martin |
| Portrait: | yes |
| Birth Date: | 1903 December 13 |
| Remarks: | mentioned in a biographical sketch |
| Page: | 62 |
