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William Dundas Scott-Moncrieff (1846-1924), consulting engineer, of 75 Buchanan Street, Glasgow. 
1846 May 11th. Born in Ratho, Midlothian, the son of David Dundas Scott (1801-1875) and his wife Mary Catherine Scott. DDS was the son of William Scott-Moncrieff (1787- )
Studied at the University of Edinburgh
Apprenticed at Macnab and Co, Greenock. As a result of an injury in the pattern shop, his right hand was disabled which led to the end of his apprenticeship.
1869 The partnership was bankrupted by the low price bid for Cutty Sark
1873 Awarded the Keith Medal and Prize by the Royal Scottish Society of Arts
1873 Listed as 'William Dundas Scott Moncrieff, 161 Hope st, - Agent for the Liverpool and London and Globe Insurance Co'
W. D. Scott Moncrief or Moncrieff invented a pneumatic tramcar.
1875 Demonstrated his pneumatic tramcar in Scotland
Practiced as a consulting engineer in Glasgow before moving to London
1878 Legal Case where he is described as an engineer of 75 Buchanan Street.
1881 Married Emily Mary Degilibert (1860-1929)
1881 Presented on "Compressed-Air Engines for Tramways" at I Mech E meeting
1882 of 1 Fairholme Road, Kensington
1883 Proposed for membership of the Inst of Mech Engineers
1891 Living at The Lodge, Station Road, Ashtead, Surrey: William D. S. Moncrieff (age 44 born Scotland), Civil Engineer. With his wife Emily M. S. Moncrieff (age 32 born Grosvenor Place, London) and their two sons Phillip D. S. Moncrieff (age 9 born West Kensington) and William W. S. Moncrieff (age 5 born Grosvenor Square London). Also his cousin James G. D. Mure (age 7 born London). Three servants.
1895 Civil engineer, of 14 Victoria St., London
1899 Patent for 'Purifying Sewage'
1911 Civil engineer, living at The Red House, Littleton Laleham, Mddx.: William Dundas Scott-Moncrieff (age 64 born Ratho, Midl.), Civil Engineer. With his wife Emily Mary Scott-Moncrieff (age 52 born London) and their son William Walter Scott-Moncrieff (age 25 born London), Architect. Two servants. They had been married for 29 years with four children of whom three were living
1924 December 1st. William Dundas Scott Moncrieff died at Brighton, of 49a Sussex Square, Brighton. Probate to his widow Emily Mary.