D143 was built by Neilson and Company Glasgow Scotland in 1874 maker’s number 1847. The locomotive was one of  the first of 22 D class locomotives built by Neilsons and also Scott Brothers in Christchurch New Zealand. Entering service in April 1875 143 became the first locomotive allocated to the Isolated Nelson Section. In 1882 it became D1 and in 1890 D143. 143 was first used on construction trains on the Nelson Line and later on Goods and Passenger trains.

Ed101 was assembled by the English Electric Company in Preston , England in 1937, makers number 3886 and entered service with New Zealand Railways in May 1938.Ed101 was used for suburban passenger trains and local goods trains around Wellington. After being withdrawn in 1981 Ed101 was moved to the railway in May 1984.
 

Ww571 was built at the Hillside workshops in Dunedin in 1914 with makers number 147 and entered service on the 4th of November of that year. Initially based in Wellington, 571 was also based in places as far away as Thames and Napier before returning to Wellington in 1936, where it was mainly used on suburban passenger trains until withdrawn from service in 1953 following the introduction of the De class diesel electrics in 1952. 571 was stored along with other withdrawn engines at Hutt Workshops, its future uncertain.

Ransomes and Rapier steam crane number 124 was built around 1946. It was understood to have originally been built for a metre gauge railway in Africa who later cancelled their order. The crane was then advertised for sale world wide as war surplus. New Zealand Railways purchased the crane the same year but it was not put into service until 1948. The delay after purchase is rumoured to have been the time taken to regauge the crane to 3ft 6in. Originally based at Frankton , 124 was used mainly on Way and Works service i.e. lifting track sets, bridges etc.

Eb26 was built by NZR at the Hutt Workshops using componants supplied by the Goodman Manufacturing Company in the USA in 1929, originally as a battery electric locomotive. It was based at the workshops for many years being used on light shunting duties in the car and wagon workshop. Over time the storage batteries started to fail so a war surplus AEC generator set was mounted on the original underframe along with a new cab in 1953. The generator was hooked up to the original traction motors converting the loco into a diesel electric.

Entering service in October 1941, Ka 935 maker’s number 318 was built at Hutt Workshops in Wellington. When built 935, along with most of the rest of the Ka class were coal fired but was converted to oil firing in 1948. They were also fitted with a “streamlined” casing over the front of the smoke box, boiler and running boards. The purpose of this was to hide the ACFI feed water pump and associated piping. 935 had its casing and ACFI pump removed in 1950 and was fitted with an exhaust steam injector.

Barclay 1181 was built in Scotland in 1909 for the Wellington Meat Export Company Ngauranga freezing works. It was used to shunt wagons from the NZR sidings up into the works. 1181 was in use until c1963 when serious boiler trouble saw it withdrawn from servie. 1181 was aquired by preservationist Len Southward who moved the loco to his factory in Seaview. In 1981 1181 was gifted to Steam Incorporated and stored at the Paekakareki depot. In1996 a group of Steam Inc's younger members nicknamed the Barclay Boys commenced work on a project to evantually return the loco to operation.