Links
- The Seward Family Digital Archive
<https://sewardproject.org> - The William Henry Seward House
<https://www.sewardhouse.org/> - Abraham Lincoln Association: Collected Works of Abraham Lincoln
<https://quod.lib.umich.edu/l/lincoln/> - Abraham Lincoln Papers at the Library of Congress
<https://memory.loc.gov/ammem/alhtml/malhome.html> - Abraham Lincoln Presidential Library and Museum
<https://www.alplm.org/home.html> - Papers of Abraham Lincoln
<https://www.papersofabrahamlincoln.org/>