RG9 III volume 4482 includes the following files: Engineering Department routine circulars, nos. 1-90, 17 April - 23 Dec. 1918 ( file 1); Construction, Candas-Coteville broad gauge railway line, spurs, yards, sidings, 17 April-31 July 1918 ( files 2-3); Reconstruction and maintenance of light railways in Fourth Army rea under Directorate of Construction, 8 Aug. -17 Nov. 1918 ( file 4).
RG9 III volume 4483 includes the following files: Construction Roisel-Bellicourt broad gauge railway line, maintenance of Roisel - St. Quentin broad gauge line, 28 Oct. -19 Dec. 1918 ( file 5); Construction reports, 60 cm light railways, 1 Aug. -17 Nov. 1918 ( file 6); Construction, Plateau-Tones Wood and Maricourtjet- Peronne broad gauge railway lines, 29 Aug. - 16 Sept. 1918 ( file 7); Field survey notebooks relating to broad, standard and light railways in Third Army area, 27th April 1917-21 Dec. 1918 RG9, III, vols. 4486-4488); Instructions re pay, casualties, organization of transport, promotion and grading of officers, returns to be sent, issue of maps, etc. 13 April 1917 - 26 Dec. 1918 ( file 8); Labour disposition returns, ADCT, Fourth Army, 21 Sept. -16 Nov. 1918 ( file 9); Monthly labour wastage returns, 1 June - 30 Nov. 1918 ( file 10); Locations and moves, 1 May 1917 - 29 Dec. 1918 ( file 11); Locations and moves, corps troops and attached units, 5-17 May 1918 ( file 12); Monthly position rolls of officers,11 April - 31 Dec. 1917 ( file 13); Organization and administration, Directorate of Construction and Maintenance of Light Railways, Fourth Army area, 14 Jan. - 11 Sept. 1918 ( file 14); Daily orders, Pts. I and II, 1-30 Sept. 1917 ( file 15).
RG9 III volume 4484 includes the following files: Orders and instructions, Railway Construction Engineers IV, 1 Jan. -5 Sept. 1918 ( file 16); Plans and profiles, Candas-Coteville broad gauge line, spurs, yards and sidings ( files 17-18); Plans and profiles, Plateau-Peronne, Roisel-Bellicourt and Le Coteau - Maudeuge broad gauge lines ( file 19); Plans and profiles, light railway lines in Third Army area ( files 20-21).
RG9 III volume 4485 includes the following files: Survey and lines for light railways in Fourth Army area (file 22); Plans and profiles for light railways in Fourth Army area (files 23-24); Weekly returns of mileage constructed, maintained and personnel employed.); 18 Sept. - 11 Dec. 1918 (file 25);
RG9 III volume 4486 includes the following files: Daily reports on progress of work (Railway construction Engineer, Communications), 19 Nov. - 18 Dec. 1918 ( file 30); Daily reports on progress of work on broad gauge. Sent to RCE IV, 25 Oct. 1918- 15 Jan. 1919 ( file 31); Work on "A" system of light railways north west of Amiens, 1-31 Aug. 1918 ( file 32); Work on light railways, Fourth Army area 11 Aug. - 18 Dec. 1918 ( file 33); Construction of Roisel-Bellecourt and Le Coteau - Maubeuge broad gauge lines, maintenance of Roisel-St.Quentin broad gauge line, 25 Oct. 1918-16 Jan. 1919 ( file34); Weekly work reports, 26 May -29 Dec. 1917 ( file 35); Monthly work summaries, 1 April - 31 Dec. 1918 ( file 36).
See also: Army Transit Books re stock, technical tools for broad gauge and light railways, 12 April - 21 Dec. 1918 (RG9, III, vols. 4488-4489); Daily reports on progress of work, 17 April - 31 July 1918 (RG9, III, vols. 4485-4486, files 26-29); Canadian Records Office file (RG9, III, vol. 1130, file R-47-4).
For related records found in the Department of National Defence fonds, see the following files: Demobilization (RG24, vol. 1802, file HQ 683-834-1); Badges (RG24, vol. 4473, folder 1, file 1).
This information is based on Barbara Wilson's unpublished Guide to the Sources of the Canadian Expeditionary Force.