Who was Alexander Dallas Bache?

Maryellen Sault, National Geodetic Survey

Kyle Ward, Office of Coast Survey

How did we

get here?

Superintendents of the U.S. Coast Survey

Ferdinand Rudolph Hassler Alexander Dallas Bache

Alexander Dallas Bache

Charleston, SC

1810

Geodetic Survey Baselines

Bar of Invariable Length

Edisto Island, SC

Edisto Island, SC Recon Work

9

Geodetic Survey Baseline

Edisto Island, SC

Triangulation

12

Geodetic Survey Monument

1858 Charleston, SC Nautical Chart

14https://historicalcharts.noaa.gov/

Supporting the Civil War

https://historicalcharts.noaa.gov/

Supporting the Civil War

• Superintendent of Weights & Measurements

• One of the Smithsonian Institution Founders

• President of the National Academy of Sciences

• Awarded several medals from foreign governments

• First to hire a woman for a scientific position.

16

Bache’s Accomplishments

Continue preservation efforts of the Bache geodetic survey baseline on Edisto Island, South Carolina

1. Replicate and Update Interpretative Boards

2. Create Interactive Website

3. Design Information Handout

17

Preserve America Grant Proposal

Edisto Island, SC East Base

Bache Monument - 2015

18

Edisto Island, SC East Base

Bache Monument - 2016

Bache Monument Preservation Story Map

https://arcg.is/1vgVf22

Bache Monument Preservation Story Map

https://arcg.is/1vgVf22

23

Outreach Material

Acknowledgements