(the person who gave the names liked Civil War era people)

in the middle left with the three snow fields is:
Lee Promontory (`6,900 ft)

followed behind by:
Seward Peak (`7,800 ft)

then the highest peak (middle image) is:
Lincoln Peak (~9,300 ft)

The Deming Glacier is down below between the middle ridge and the Lee Promontory.

The RR Grade is the ridge in the foreground and goes for over a mile.