The only information I have on this loco is that it is a 3' gauge Agricola 2-8-2 No. 170 in Guatemala.

American Aggregates 'critter' No. 738. No further data known in this neck of the woods.

US army S160 2-8-0. Date and location not known.

Bangor & Aroostock RR ten-wheeler No. 65 was one of 25 by Manchester in the period 1901 thru' 07. They were withdrawn over a long period of time from 1927 thru' 1952. The date and location of this image aren't known.

Baltimore & Ohio RR P3 class pacific No. 5122 at Baltimore on 28th September 1947. The P3's were constructed by Baldwin in 1913 and consisted of 30 examples the last of which was withdrawn in 1952.

This beautifully proportioned P5 class atlantic No. 2565 was owned by the Chicago, Burlington & Quincy RR more familiarly known as The Burlington Route. This example was one of a class comprising 14 locos dating from the mid-1920's but which were actually rebuilds of earlier locomotives built in 1902/3. This shot was taken at St. Louis Missouri in December 1940 and all were withdrawn from service between 1942 and 1954.

Chicago & Illinois Midland RR 0-8-0 No. 540 was one of a class of only two locomotives built by Lima in 1937 and they survived until 1955. date and location not known.

Some loco! This Delaware & Hudson H class 0-8-8-0 articulated, No. 1610, dates as far back as around 1912 by Schenectady. The class of only 13 examples was dispatched to the steam graveyard between 1942 and 1943.

Fort Worth & Denver City RR class E-4A1 2-8-2 No. 404 built by Baldwin and depicted here at Ft. Worth on March 12th, 1953.

Illinois Central RR 2-10-2 No. 2725. No further data available although it looks as though its days as a working engine are numbered in this shot.

Illinois Central RR 2-10-2 No. 2743. No further data available. This loco and that in the previous image were both built in the company's own shops.

The data supplied with this negative states that the subject is Shay locomotive No. 12 at Kelly Creek, Mammoth VA taken in July 1946. I'm sure that the date is way off beam and that the shot was taken at least 0 years later which brings into question the rest of the data. Any help with supporting information would be appreciated.

Lehigh Valley RR N-2 class 2-8-2 No. 338 was built by Baldwin in 1913 and is depicted at Lehighton (Pennsylvania) on July 27th 1947. The class of 42 locos was progressively withdrawn between 1938 and 1951.

Lehigh Valley RR T-1 class 4-8-4 No. 5100 was built by Baldwin in 1931 and is seen here passiing the photographer at Metuchen (New Jersey) on July 2nd 1939. The 11 members of the class had relatively short working lives as all were withdrawn in 1950/51.

1889 Baldwin built ten-wheeler No. 2731 which was allegedly a Missouri Pacific RR loco. Additional information on this image taken in Kansas in 1912 would be welcome.

Gardenville, New York, plays host to New York Central RR's 2-8-2 No. 6362 on an unspecified date in 1955.

New York, New Haven & Hartford RR G-3 class 4-6-0 No. 960 was recorded on film at Providence, Rhode Island, on May 12th, 1934.

New York, New Haven & Hartford RR L1-A class 2-10-2 No. 3227 awaits the last rites at South Modena on December 14th, 1947.

This undated view of Norfolk & Western class Z1b 2-6-6-2 mallet No. 1487 was taken at Norfolk, Virginia.

The Norfolk & Western RR was the province of some hefty motive power exemplified by Y4 2-8-8-2 Mallet No. 2080 which was captured on film at Stuarts Draft, Virginia, on July 25th, 1956.

An unidentified PRC 0-8-0 pauses with a track maintenance trials train near Pittsburgh circa 1930.

Pennsy No. 7561 is seen here resting at New Castle, Pennsylvania, in May 1931. This PRR 2-8-0 is a class H10s built in 1913 whilst this example was scrapped in June 1950.

Pennsy 2-8-0 No. 8247 is seen here in an industrial setting at east St. Louis, Illinois, in April 1949.

I asked for help with a caption for this shot and got it in spades from Matt Thrasher:

These locos are on display at Railroad Museum of Pennsylvania. The photo would more likely date from 1979 on. Definitely after 1975, when the museum opened.

6755 was built in 1930 in the Juniata shops as a PRR class M1a. In 1944, it was reclassed as a M1b, after the modifications to the boilers.

6755 at the time of your picture would be in its M1b classifications.The other locomotive, 2846 is a Pennsylvania Railroad class H6sb, built by Baldwin 2-8-0 in 1905.

The PRR switched from round loco number plates to the keystone shape starting in 1930

Cedar Rapids & Iowa City: 2 x Bo-Bo electric locos on a freight working with No. 57 leading. Iowa city, 1951.

Ft. Dodge, Des Moines & Southern: steeple cab electric Bo-Bo no. 115 photographed in April 1952.

Ft. Dodge, Des Moines & Southern: Bo-Bo electric Loco No.209 at Des Moines in 1951.

Ft. Dodge, Des Moines & Southern: Bo-Bo-Bo-Bo electric loco No. 362 at Des Moines in 1951.

Cedar Rapids & Iowa City: Bo-Bo electric No. 73 plus ex-Indiana RR car 123 taken in April 1952 but location not known.

Any data on this elevated railway from street level image would be appreciated.

In Britain we bemoan the fact that so many of the steam locos built in the 1950's had such short working lives but this one in America takes some beating. Raritan River RR 0-6-0T No. 19 was delivered new from Lima in 1948 but survived only until 1954. here we see her at sayreville, New Jersey, near the end of her life on March 13th, 1954.

It looks like it's the end of the line for this Reading Lines 0-6-0CB (Camel back) switcher No. 1331. The B-7a class was built at the BLW Reading works between 1906 and 1913 and the probabkle date for this image is circa 1949.

The Reading Lines K-1sb class of 2-10-2's comprised just 10 locos and was outshopped by Baldwin in 1931. This view depicts No. 3015 on shed but where and when aren't known.

1636 is a Reading Lines 2-8-0 seen here on switching duties at Gettysburg PA in 1944. She's one of a class of 75 I-9s class locos built by Baldwin in the period 1918 thru' 1921.

The loco portrayed is Reading Lines 4-8-4 No. 2102. this T-1 class was a home grown class consisting of 30 examples built between 1945 and 1947 with the first one being withdrawn as early as 1957.

The camelback concept was a familiar one but was pretty well unique to mainland America. This example from the Reading RR fleet is 2-8-0CB No. 1591 photographed at Gettysburg PA in the mid-thirties. It's one of a class of 117 class I-8a locos built at the BLW Reading works between 1905 and 1914. All were retired in the period 1937 thru' 1945.

Latecomers on the steam scene in the USA were these magnificent class T-1 4-8-4's of which 30 were built in Reading RR's own workshops between 1945 and 1947. These also had scandalously short working lives as the first was withdrawn from service in 1957. Here we see a line-up, probably at Reading, with No. 2125 leading the pack.

San Diego & Arizona Eastern Railway Company 2-8-0 No 105 at Colton, California on 11th November 1954.

San Diego & Arizona Eastern Railway Company 2-8-0 No 50 at San Diego, California on 3rd December 1944.

Southern New Jersey RR 4-4-0's No. 5 & 6 at Barnegat, New Jersey on April 16, 1939.

The Minneapolis, St. Paul & Sault Ste Marie Railway was better and more conveniently known as The Soo Line. Amongst its extensive locomotive stock was this B-4 class 0-6-0 switcher No. 351.

The Minneapolis, St. Paul & Sault Ste Marie Railway was better and more conveniently known as The Soo Line. Amongst its extensive locomotive stock was this H-23 class pacific No. 351 which was one of only six examples built at the Schenectady works in 1923.

I've been thus far unable to nail down any background data for this shot of SP Lines 4-6-0 Mo. 695.

Southern Pacific (Texas & Louisiana Lines) P-5 class 4-6-2 No. 602 was one of a class of 10 examples built by Baldwin in 1912 and all were scrapped between 1952 and 1957.

TR Miller Mill Company 2-4-2T No. 12 at Brewton Alabama in 1958.

3-truck Shay Loco No. 5 Twin Seams Mining Co, Kellerman, Alabama 27/8/58.

3-truck Shay Loco No. 8 Twin Seams Mining Co, Kellerman, Alabama 28/3/58.

Victorville CA plays host on May 6th, 1947 to Union Pacific MK-7 class 2-8-2 No. 2711. Built by Lima as one of a batch of three examples in 1917 for the LA&SL (Los Angeles & Salt Lake) all were withdrawn between 1948 and 1958.

Alco-built class FEF-1 4-8-4 No. 808 is depicted at Council Bluffs Iowa on December 6th, 1959. The Union Pacific class comprised 20 examples built in 1937 and all retired from active service in the period 1954 thru' 1961.

An American selection wouldn't be complete without some articulateds and here we see Virginian Railway 2-6-6-6 No. 906 at Victoria VA. She was a member of the AG class built by Lima in 1945 and all were scrapped in 1960.

Western Maryland Railway H-7 class 2-8-0 No. 729 captured as she passes the camera at an unknown location in 1941. This class of 36 locos was built by Baldwin in 1910/11 and all had met their end by the end of 1951.

Western Maryland Railway H-7B class 2-8-0 No. 760 slakes her thirst at Shippensburg PA on January 2nd, 1941. This class of 15 locos was built at the Richmond locomotive works in 1912 and all were scrapped in 1954.