Mac Johanson
Austin-based collector with an extensive holding of Three Rivers Glass bottles and Hoffmann-Hayman artifacts. Former president of the Grace Armantrout Museum (George West, TX). Referred to the project by Kevin Mackey in June 2026.
Collection holdings (known)
- Clear one-pound H and H Blend Crystalvac jar — labeled, in excellent condition; pictured in HH-REF-2017-0004 (The Progress front-page clipping, April 2017); this is the “Mac Johanson / Austin specimen” described in that artifact’s alt text
- Broader Three Rivers Glass bottle collection (extent unknown)
- H&H-related artifacts beyond the Crystalvac jar (details not yet documented)
Grace Armantrout Museum
Johanson served as president of the Grace Armantrout Museum board (George West, TX) — term dates not yet confirmed. Leslie Walker held the presidency as of July 2024.
Three Rivers Glass Museum — potential initiative
Kevin Mackey (2026-06-09) expressed the view that Mac Johanson should start a dedicated Three Rivers Glass museum. Project has registered threeriversglass.org (2026-06-09) and can offer a CZUR scanner loan to support digitization of his collection. Next step: meeting between curator and Johanson (arranged via Mackey).
Contact history
See: work/correspondence/mac-johanson.md
Open questions
- Full extent of Three Rivers Glass and H&H holdings
- Exact tenure as Grace Armantrout Museum president
- Interest level in a Three Rivers Glass museum / threeriversglass.org initiative
- Whether any H&H trade documents or correspondence are in his collection
See also
- Kevin Mackey — referring contact
- Three Rivers Glass Company
- Grace Armantrout Museum — former board role
- HH-REF-2017-0004 — The Progress clipping; Johanson’s Crystalvac jar pictured
- Crystalvac
- Fujifilm X100T — Field Photography Reference
- Fujifilm X-T5 + 80mm Macro — Artifact Documentation Reference
- Collection Site Visit — Artifact Photography & Story Capture — next likely site-visit target