David Ahlgren has 2 unverified course graduates
| Name | Course Title | Type | Date | Location | Teachers | |
|---|---|---|---|---|---|---|
 |
Rebecca Reiber | Earthworks Course | Earthworks | Sep 2018 | PNW Permaculture Convergence, Camp Singing Wind, Toledo, WA | David Ahlgren |
|
Rebecca Reiber | Tropical Earthworks | Earthworks | Dec 2019 | 8th Life Panama EcoVilalge Project | David Ahlgren |
