Terp was one of the helpers, but he didn't lead the group. When I went, he stayed towards the back to make sure there weren't any stragglers or people wandering off course. The main guide was a... horticulturalist? She was an employee of the arboretum, whereas Terp as a volunteer. Actually, I think he may have recruited me as a last-minute volunteer because the other volunteer couldn't make it. Which is great since I didn't have to pay for it!
I miss Terp! He stopped coming to DG because his phone wouldn't load up the website anymore. I need to let him know about the seed swap.