What Once Was–DC History Column — Matthew B. Gilmore
What Once Was — Matthew B. Gilmore (archival links below) Washington DC, Center of Manufacturing . . . PUBLISHED: JULY 18TH, 2015 Washington’s Lime Kilns: Creating the stuff of building PUBLISHED: AUGUST … Continue reading
November 27, 2020 · Leave a comment
Pneumatic tubes: technological innovation and politics in Shepherd-era Washington DC
Excerpts.. . For complete column CLICK: Pneumatic tubes: technological innovation and politics in Shepherd-era Washington DC By Matthew B. Gilmore* Deep in the archives of the Smithsonian Institution is a … Continue reading
January 6, 2020 · Leave a comment
Washington DC History Resources 