William MacNay (1825-1882)
1865 William MacNay, Assistant Manager, Shildon Engine Works, Darlington.
1883 Obituary 
WILLIAM MACNAY was born on 25th December 1825 at Wallsend-on-Tyne: his father, Mr. Edward MacNay, being employed at the colliery bearing that name. His father removed thence in June 1835 to St. Helen's, Auckland, and filled the situation of overman at St. Helen's Colliery.
About the latter end of the year 1838 William MacNay commenced work as clerk in the office at the Shildon Engine Works, then under the management of the late Sir. Timothy Hackworth.
In 1839 he was removed to Soho Works, Shildon, and commenced as a moulder in the foundry. These works were then occupied by Mr. Thomas Hackworth, who was succeeded by his brother Mr. Timothy Hackworth in May 1840.
There Mr MacNay remained until May 1841, when he left and returned to Shildon Engine Works, entering as an engineer's apprentice under the late Mr. William Bouch, Locomotive Superintendent of the Stockton and Darlington Railway.
In 1856 he took charge of the Shildon Works under Mr. Bouch; and on the death of that gentleman in 1876 he continued in charge as manager under Mr. Edward Fletcher, until his death, which took place at Shildon on 1st June, 1882.
He became a Member of the Institution in 1865.