# Image credits and license chain

Verified 2026-10-08 via the Wikimedia Commons API (extmetadata) and downloaded via `Special:FilePath`. Every file was checked with `file(1)` to confirm real image data.

| File | Commons source | Author | License | Date | Notes |
|---|---|---|---|---|---|
| nat-1913.jpg | File:Natatorium (Boise, Idaho).jpg | Boise Commercial Club pamphlet "Boise, Idaho" (Syms-York Co.), p.61, via archive.org | Public domain (published 1913, pre-1929) | 1913 | Exterior of the 1892 Natatorium. Tier 1: pre-1929 US publication. |
| nat-1906.jpg | File:The Mammoth Natatorium (Boise, Idaho).jpg | Household Economic Committee, Boise, "The Columbian Club Cookbook of Tested Recipes" (Syms-York Co.), via archive.org | Public domain (published 1906) | 1906 | Advertisement page with exterior and interior views. Tier 1. |
| nat-1905-exterior.png | File:Souvenir of Western Women 0064 Boise natatorium.png | Mary Osborn Douthit et al., "The Souvenir of Western Women" | Public domain (published 1905) | 1905 | Tier 1. |
| nat-1905-interior.png | File:Souvenir of Western Women 0064 Boise natatorium (interior).png | same | Public domain (published 1905) | 1905 | Interior pool view, low resolution (593x382). Tier 1. |
| moore-habs-1.jpg | File:NORTH FRONT ELEVATION - Moore-Cunningham House, 1109 Warm Springs Avenue, Boise, Ada County, ID HABS ID,1-BOISE,17-1.tif | Historic American Buildings Survey, National Park Service | Public domain (US federal government work, 17 U.S.C. 105) | HABS survey | The first geothermally heated house. Tier 1. |
| moore-2018.jpg | File:Moore-Cunningham House.jpg | Tamanoeconomico (own work) | CC BY-SA 4.0 | 2018-07-28 | Tier 2: named author, own work. |
| pumphouse-1.jpg, -2, -3, -6 | File:Artesian Water Co. Pumphouse (1/2/3/6).jpg | Tamanoeconomico (own work) | CC BY-SA 4.0 | 2019-03-09 | The 1892 well house (NRHP). Tier 2. |
| avenue-2013.jpg | File:Row Houses on Warm Springs Avenue, Boise.jpg | Carl Burnett (own work) | CC BY-SA 3.0 | 2013-09-22 | Tier 2. |
| cavanah.jpg | File:Charles C. Cavanah House.jpg | (metadata fetch rate-limited; re-check before use) | CC BY-SA (expected, same uploader series) | | NOT YET VERIFIED. Do not publish until the Commons page is re-read. |
| springer.jpg | File:John S. Springer House.jpg | (metadata fetch rate-limited; re-check before use) | CC BY-SA (expected) | | NOT YET VERIFIED. Same. |
| gem-1893.jpg | File:Idaho, gem of the mountains (1893) (14597316368).jpg | Internet Archive Book Images, from an 1893 publication | Public domain (published 1893) | 1893 | Montage page; not used on the site. |

Required attribution text for CC BY-SA files is included in the site's photo captions and in the Credits section of the page. The Commons file page is linked for each.

Not used on the site: cavanah.jpg, springer.jpg (license unverified), gem-1893.jpg (montage, low value).

Photos of private residents' mechanical rooms: none collected yet. Any added later need the owner's written permission recorded here.