GDP, debt and debt to GDP ratio of the U.S. between 1850 and 1900-20170202-gdp-debt-usa-1850-1900-tsf-gif

Debt to GDP ratio evolution :

Millard Fillmore : -1%
Franklin Pierce : -1%
James Buchanan : +1%
Abraham Lincoln : +28%
Andrew Johnson : +4%
Ulysses S. Grant : -7%
Rutherford B. Hayes : -9%
James A. Garfield : 0%
Chester A. Arthur : -1%
S. Grover Cleveland : -5%
Benjamin Harrison : -2%
S. Grover Cleveland : +1%
William McKinley : -2%

Sources :

Treasurydirect.gov,
Stlouisfed.org.