David Ahlgren has 3 other course course graduates
| Name | Course Title | Type | Date | Location | Teachers | |
|---|---|---|---|---|---|---|
 |
Neil Edens | Solar Power Installation Training and Hands-on Workshop | Other | May 2014 | Merrick Valley Farm Merrick, OK | David Ahlgren |
 |
Erik Wingren | Earthworks Course | Earthworks | Sep 2018 | PNW Permaculture Convergence, Camp Singing Wind, Toledo, WA | David Ahlgren |
 |
Lisa Miller | Advanced Earthworks | Earthworks | Sep 2018 | Camp Singing Wind | David Ahlgren |
