Stanton Square/Park and Seward Square/Park?
Seward was Lincoln's SoS and has a connection with Russia in the Alaska purchase. If we accept that Lincoln was the last legitimate US President of the Republic, then Seward was the last legitimate SoS.
Stanton was Lincoln's Sec of War. Stanton irritated Johnson (who was a shit) and tried to force him out. Stanton was supported by Seward and Grant (Johnson wanted Grant to take over even though Grant opposed this entire thing). Stanton turned over the keys without much resistance, despite being protected by the Tenure of Office Act. Senate put Stanton back in office and Grant gladly gave it back. Johnson tried to remove Stanton again and this time he refused to concede. This is why Johnson was impeached. Should have been convicted. Only 1 vote short. Stanton decided to resign, despite the support from most Republicans. The whole event made Johnson look like even more of a shit, which propelled Grant to the presidency the next election.
Stanton Park and Seward Park?