The Chicago, St. Paul, Minneapolis & Omaha Railway
"The Omaha Road"
Other sites of Potential Interest to the C.St.P.M.&O. railfan...
A TimeLine history of the C.St.P.M.&O. Railway
the C.St.P.M.&O. Railway's Hannibal Branch (Doug Stoll)
Eau Claire Tower
Caboose # 6110
A Capsule History
CStPM&O # 15, a six-coupled Switch Engine at Hudson, Wisconsin in 1955.

Mr. Stan Mailer says, in his book The Omaha Road, this number is one of class F-6, a 19-inch Schenectady unit with Serial number 5832, built 6/1901 and retired 9/1945.
I can't account for the discrepancy other than to speculate that this was an error of notation by the photographer.

Class: F-6
Cylinders: 19" x 24"
Drivers: 51"
Boiler Pressure: 160 PSI
Weight: 111,600 lbs.
Tractive Effort: 23,103 lbs.

CStPM&O # 81, a six-coupled Switch Engine (Class M-3, built by Alco in 1919) at Itasca, Wisconsin in 1953.

Mr. Mailer adds that this engine was built in Alco's Schenectady works, carried Serial number 61339, was built 7/1919 and retired 6/1956.

Class: M-3 (USRA)
Cylinders: 21" x 28"
Drivers: 51"
Boiler Pressure: 190 PSI
Weight: 163,500 lbs.
Tractive Effort: 39,100 lbs.

CStPM&O # 102, a "Ten Wheeler" (4-6-0) locomotive at Hudson, Wisconsin in 1955.

Mr. Mailer adds that this engine was a member of Class I-1, was built in Alco's Schenectady works, carried Serial number 48949, was built 12/1910 and retired 6/1956.

Class: I-1
Cylinders: 21" x 26"
Drivers: 63"
Boiler Pressure: 200 PSI
Weight: 179,000 lbs.
Tractive Effort: 30,940 lbs.

A second shot of # 102 at Hudson, Wisconsin, in July of 1955.
CStPM&O # 108, a "Ten Wheeler" locomotive of Class I-1 at Hudson, Wisconsin on February 30, 1944.

Mr. Mailer's Locomotive Roster says that this engine was a member of Class K-1, was built in Alco's Schenectady works emerging with Serial number 50127, was built 7/1911 and retired 6/1956.

Class: K-1
Cylinders: 23" x 26"
Drivers: 63"
Boiler Pressure: 180 PSI
Weight: 186,000 lbs.
Tractive Effort: 33,400 lbs.

CStPM&O # 184, a "Ten Wheeler" locomotive of Class K-1 at Hudson, Wisconsin in September of 1955.

Mr. Mailer adds that this engine was built in Alco's Schenectady works, carried Serial number 52624, was built 2/1913 and retired 6/1956.

See Specifications for Class K-1 above.

CStPM&O # 203, a "Ten Wheeler" locomotive of Class K-1 (Alco - 1913) at Spooner, Wisconsin on September 3, 1955.

Mr. Mailer adds that this engine was built in Alco's Schenectady works, carried Serial number 52626, was built 2/1913 and retired 12/1956.

See Specifications for Class K-1 above.

CStPM&O # 218, a "Ten Wheeler" locomotive (Alco - 1913) of Class K-1 at Itasca, Wisconsin in July of 1955.

See Specifications for Class K-1 above.

CStPM&O # 219, a "Ten Wheeler" locomotive at Itasca, Wisconsin in September of 1952.
CStPM&O # 236, a "Ten Wheeler" locomotive (Alco - 1912) at Hudson, Wisconsin in September of 1955.

Mr. Mailer adds that this engine was built in Alco's Brooks works, carried Serial number 50948, was built 4/1912 and retired 6/1956.

See Specifications for Class K-1 above.

CStPM&O # 245, a "Ten Wheeler" locomotive (Alco - 1912) at Hudson, Wisconsin in September of 1955.

Mr. Mailer adds that this engine was built in Alco's Brooks works, carried Serial number 50955, was built 4/1912 and retired 6/1956.

See Specifications for Class K-1 above.

CStPM&O # 388, a "Pacific" (4-6-2) locomotive of Class K-2 at Spooner, Wisconsin on September 9, 1946.

Mr. Mailer adds that this engine was a member of Class J, was built in Alco's Schenectady works, carried Serial number 50124 and was built 7/1911.

Class: K-2
Cylinders: 23" x 28"
Drivers: 75"
Boiler Pressure: 185 PSI
Weight: 220,000 lbs.
Tractive Effort: 31,050 lbs.

CStPM&O # 407, a "Mikado" (2-8-2) locomotive (Alco 1916) at Spooner, Wisconsin in 1939.

Mr. Mailer adds that this engine was built in Alco's Schenectady works, carried Serial number 55563 and was built 3/1916. He further states she went to J-A 11/1938 and was retired 6/1956.

Class: J
Cylinders: 27" x 32"
Drivers: 64"
Boiler Pressure: 200 PSI
Weight: 307,000 lbs.
Tractive Effort: 62,000 lbs.

Bob Guhr adds: "The 407 appears to have been taken at Hudson, and not Spooner. The structure in the background is common to many photos taken at Hudson."

CStPM&O # 431, a "Mikado" locomotive (Alco - 1921) at Elroy, Wisconsin in October of 1955.

Mr. Mailer adds that this engine was built in Alco's Richmond works, carried Serial number 62614, was built 1/1921 and was retired 6/1956.

Class: J-2
Cylinders: 27" x 32"
Drivers: 64"
Boiler Pressure: 200 PSI
Weight: 320,000 lbs.
Tractive Effort: 62,000 lbs.

CStPM&O # 492, a "Santa Fe" (2-10-2) locomotive at Spooner, Wisconsin in September of 1946.

Mr. Mailer adds that this engine was built by Baldwin Locomotive Works, one of Class J-1. She carried Serial number 45977, and was built 7/1917. Traded to C&NW in 1944, she was later rebuilt to an 0-10-2 configuration for use as a hump engine.

Class: J-1
Cylinders: 27" x 32"
Drivers: 57"
Boiler Pressure: 185 PSI
Weight: 324,200 lbs.
Tractive Effort: 64,356 lbs.

Bob Guhr adds: "The 492 was photographed at Hudson and not Spooner. The date is incorrect because at that time, these engines had been traded to the C&NW for a couple of J engines. The C&NW rebuilt them to 0-10-2's because the pilot wheels kept derailing on the Proviso hump."

CStPM&O # 500, a Class E "Pacific" (4-6-2) locomotive at St. Paul, Minnesota on May 30, 1947.

Mr. Mailer adds that this engine was built in Alco's Schenectady works, carried Serial number 53039, was built 5/1913 and was retired 6/1953.

Class: E
Cylinders: 25" x 28"
Drivers: 75"
Boiler Pressure: 200 PSI
Weight: 260,000 lbs.
Tractive Effort: 39,700 lbs.

CStPM&O # 506, a "Pacific" locomotive at St. Paul, Minnesota in 1946.

Mr. Mailer adds that this engine was built in Alco's Schenectady works to Class E specs, carried Serial number 53045, was built 5/1913 and was retired 6/1956.

See Specifications for Class E above.

CStPM&O # 507, a Class E "Pacific" locomotive at Itasca, Wisconsin in 1946.

Mr. Mailer adds that this engine was built in Alco's Schenectady works, carried Serial number 53046, was built 5/1913 and was retired in 1952.

See Specifications for Class E above.

CStPM&O # 508, a "Pacific" locomotive (Alco - 1914) at Elroy, Wisconsin in July of 1952.

Mr. Mailer adds that this engine was built in Alco's Schenectady works to Class E specs, carried Serial number 53045, was built 4/1914 and was retired 5/1954.

See Specifications for Class E above. This locomotive (along with # 509) was rebuilt to Class Ea with booster, which provided 46,000 lbs. of Tractive Effort.

CStPM&O # 510, a Class E "Pacific" locomotive at St. Paul, Minnesota on June 1, 1947.

Mr. Mailer adds that this engine was built in Alco's Schenectady works, carried Serial number 54518, was built 4/1914 and was retired in 1949.

See Specifications for Class E above.

CStPM&O # 602, a "Pacific" locomotive at St. Paul, Minnesota in May of 1948.

Mr. Mailer adds that this engine was built in Alco's Schenectady works to E-3 specs, carried Serial number 68618, was built 11/1930 and was retired 6/1956.

Class: E-3
Cylinders: 25" x 28"
Drivers: 75"
Boiler Pressure: 260 PSI
Weight: 341,700 lbs.
Tractive Effort: 51,500 lbs.
Tractive Effort with Booster: 64,600 lbs.

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