Finley General Hospital

Finley General Hospital was a Union Army hospital which operated near Washington, D.C., during the Civil War. It operated from 1862 to 1865.
The hospital was set up with 1,061 beds. On December 17, 1864, 755 beds were occupied.

Location

The precise location of the hospital has been lost over time. However, several sources mention it and it is possible to deduct it from these pieces of information.
Walt Whitman mentions it in December 1862 in the Daily Morning Chronicles:
Gallaudet University was established on land donated by United States Postmaster General Amos Kendall and known as Kendall Green in 1856.
In The War Hospitals, John wells Bulkley writes in 1902:
A clarification is needed regarding the name of the streets:

Bladensburg Road is not the current Bladensburg Road. It became known as the Old Bladensburg Road and sits were Delaware Avenue crossed Boundary Street.
Boundary Street was renamed Florida Avenue on January 14, 1890.

Cantonment Sprague, occupied by 1st Regiment R.I. Detached Militia was located next to Mrs. Joseph Gales's Mansion. The Eckington General Hospital opened in 1862 and closed in April 1863 when it merged with the adjacent Finley General Hospital.
The map below shows the direction to Glenmont Cemetery which still stands today along with "Bladensburg Road".
A confirmed illustration of Finley Hospital from 1864 shows the Capitol Building and the Washington Monument.