After the White House, he retired to his Lancaster estate, where he died a bachelor in 1868
In 1860, after Abraham Lincoln (1809-1865) was elected to succeed 
Buchanan, ... During Buchanan's time in the White House, his niece, Harriet Lane
... [DOC] [TLE] James Buchanan, Jr., 15th President of the USA (1791 - 1868 ... - Geni [PAR] Death: Died June 1, 1868 in Lancaster, Lancaster County, Pennsylvania, .... To 
date he is the only president from the state of Pennsylvania and the only bachelor
.