Left (as you look at the photo) - Minneapolis, St. Paul & Sault Ste. Marie 4-6-2 Pacific-type steam locomotive No. 2718. It was manufactured by American Locomotive Company in 1924 and donated by Minneapolis, St. Paul & Sault Ste. Marie in 1958.
Total Length: 82 feet
Locomotive Dimensions:
Length: 48 feet
Width: 10 feet
Height: 14 feet, 3 inches
Tender Dimensions:
Length: 36 feet
Width: 10 feet
Height: 12 feet, 4 inches

Right - Atchison, Topeka & Santa Fe 2-10-4 Texas-type steam locomotive No. 5017. It was manufactured by Baldwin Locomotive Works in 1944 and donated by Atchison, Topeka & Santa Fe in 1959.
Locomotive Measurements:
Length: 69 feet, 2 inches
Width: 10 feet, 6 inches
Height: 14 feet, 5.5 inches
Tender Measurements:
Length: 53 feet, 7 inches
Width: 10 feet, 6 inches
Height: 14 feet, 5.5 inches