The Colorado Eagle does not appear in the December 1941 edition of the Guide (although the original Eagle had by then had its name changed to the Missouri River Eagle to prepare for its new sibling), which means that this is one of the few new streamliners to have had a wartime introduction. 

From the pages of the Official Guide, August 1944

Missouri Pacific Lines heraldDenver & Rio Grande Western herald

The Colorado Eagle

Missouri Pacific Lines
Denver & Rio Grande Western
July, 1944

11 Train Number 12
Daily Miles (Missouri Pacific Lines) Services Daily
4 15P Dp 0.0 St. Louis, MO (Union Station) (CT) T C Ar 12 15P
4 22P 2.9 Tower Grove, MO T C 11 59A
4 30P 9.5 Webster Groves, MO T C
4 35P 12.9 Kirkwood, MO T C D11 47A
5 09P 51.1 Washington, MO T C
63.5 New Haven, MO T C 10 56A
6 15P Ar 121.5 Jefferson City, MO T C Dp 10 00A
6 17P Dp Ar 9 58A
6 43P 146.6 California, MO T C 9 31A
7 25P 185.1 Sedalia, MO T C 8 53A
7 52P 214.6 Warrensburg, MO T C 8 25A
8 22P 245.5 Pleasant Hill, MO T C R 7 55A
8 50P 269.5 Independence, MO T C 7 30A
9 15P Ar 279.2 Kansas City, MO T C Dp 7 15A
9 25P Dp Ar 6 45A
F 331.2 Paola, KS (See Note) T C F
10 25P 338.1 Osawatomie, KS T C 5 32A
10 43P 359.1 Ottawa, KS T C 5 00A
11 09P 391.4 Osage City, KS T C 4 24A
11 48P 429.3 Council Grove, KS T C 3 50A
12 12A 455.9 Herington, KS T C 3 22A
12 59A 501.0 Lindsborg, KS T C 2 38A
1 37A Ar 529.2 Geneseo, KS T C Dp 2 09A
Through Sleeper Wichita-Denver
411 Connecting Train Number (Missouri Pacific) 412
9 10P Dp 0.0 Wichita, KS T C Ar 6 00A
10 40P 47.6 Hutchinson, KS T C 4 25A
11 45P Ar 88.1 Geneseo, KS T C Dp 3 00A
1 37A Dp 529.2 Geneseo, KS T C Ar 2 09A
2 13A Ar 563.2 Hoisington, KS (CT) T C Dp 1 33A
1 20A Dp Hoisington, KS (MT) Ar 12 25A
595.1 LaCrosse, KS T C 11 50P
F 3 11A 687.2 Scott City, KS T C 10 38P
711.8 Leoti, KS T C 10 13P
3 53A Ar 735.5 Horace, KS T Dp 9 52P
3 58A Dp Ar 9 47P
4 50A 790.5 Eads, CO T C 9 06P
5 42A 846.1 Sugar City, CO T C 8 16P
5 50A 851.2 Ordway, CO T C 8 11P
6 50A Ar 901.7 Pueblo, CO T C Dp 7 25P
4 Continuing Train Number (Denver & Rio Grande Western) 3
7 00A Dp 901.7 Pueblo, CO T C M Ar 7 15P
F 932.9 Fountain, CO T F
7 50A 945.9 Colorado Springs, CO T C 6 25P
F 959.0 Husted, CO C F
F 964.9 Monument, CO T F
F 968.9 Palmer Lake, CO T C F
F 973.9 Greenland, CO F
F 977.8 Larkspur, CO T F
F 988.3 Castle Rock, CO T F
F 996.3 Sedalia, CO T F
F 1000.1 Louviers, CO/Gann, CO F
F 1010.5 Littleton, CO T C F
9 30A Ar 1020.8 Denver, CO (MT) T C Dp 4 45P

Train 11-4: 26 stops, 18:15, 55.9 MPHTrain 3-12: 27 stops, 18:30, 55.2 MPH



NOTE for Nos. 11 and 12 at Paola: "Trains 11 and 12 do not carry passengers between Kansas City and Paola—stop is made at Frisco Station, Paola, to recieve or discharge revenue passengers to or from points west of Hoisington."

NOTE for Nos. 3 and 4 at flag stops between Pueblo and Denver: Trains will stop on flag to receive passengers destined to or discharge passengers received from points on Missouri Pacific system east of Pueblo. In addition, No. 3 will stop to discharge passengers received from connections at Denver. 

(Missouri Pacific Notes)

ST. LOUIS AND THE WEST

THROUGH AIR-CONDITIONED EQUIPMENT.

Number in brackets indicates designating number of sleeping or parlor car.

Westbound

No. 11—Colorado Eagle
Streamlined Diesel-Powered Train

Sleepers—
St. Louis to Denver—6-Section, 6 Roomette, 4 Double Bedrooms [111].
St. Louis to Denver—6-Section, 6 Roomette, 4 Double Bedrooms [112].
Wichita to Denver—8-Section, 1-Drawing-room, 3 Double Bedrooms [114] (No. 411 to Geneseo).

Coach, Grill Coach and Dining Car—
St. Louis to Denver.


Eastbound

No. 12—Colorado Eagle
Streamlined Diesel-Powered Train

Sleepers—
Denver to St. Louis—6-Section, 6 Roomette, 4 Double Bedrooms [31].
Denver to St. Louis—6-Section, 6 Roomette, 4 Double Bedrooms [32].
Denver to Wichita—8-Section, 1-Drawing-room, 3 Double Bedrooms [34].

Coach, Grill Coach and Dining Car—
Denver to St. Louis.


(Denver & Rio Grande Western Notes)

PASSENGER TRAIN EQUIPMENT

WESTBOUND

Train No. 3—THE COLORADO EAGLE.
(Diesel-Powered Streamlined Train.)

Diner-Lounge Car, Denver to St. Louis, via Pueblo and Mo. Pac. No. 12.

Standard Sleeper (8 Sections, 1 Drawing-room, 3 Double Bedrooms) (34) (daily) Denver to Wichita, via Pueblo, Mo. Pac. Nos. 12-412.

Standard Sleepers (6 Sections, 6 Roomettes, 4 Double Bedrooms) (31) (32) (daily) Denver to St. Louis, via D. & R. G. W. No. 3, M. P. No. 12.

Chair Car and Grill Coach, Denver to St. Louis, via D. & R. G. W. No. 3, Pueblo, Mo. Pac. No. 12.


EASTBOUND

Train No. 4—THE COLORADO EAGLE.
(Diesel-Powered Streamlined Train.)

Diner-Lounge Car, St. Louis to Denver (from Mo. Pac. No. 11 at Pueblo).

Standard Sleeper (8 Sections, 1 Drawing-room, 3 Double Bedrooms) (114) (daily) Wichita to Denver, via Mo. Pac. Nos. 411-11, Pueblo, D. & R. G. W. No. 4.

Standard Sleepers (6 Sections, 6 Roomettes, 4 Double Bedrooms) (111) (112) (daily) St. Louis to Denver, via Mo. Pac. No. 11, Pueblo, D. & R. G. W. No. 4.

Chair Car and Grill Coach, St. Louis to Denver (from Mo. Pac. No. 11 at Pueblo).