Eccup Reservoir 	123
Eckersley & Bayliss	117
Economiser Works	48
Electromobile Ltd	147
Elland Power Station	85
Elliott's Brick Co Ltd	44
Elliott's Sand & Gravel Co Ltd	43
Emley Moor Colliery	91
Enoch Tempest	134
Esholt Purification Works	102
Eureka ! The Museum for Children	157
Fairburn, Lawson, 
      Combe & Barber Ltd	44
Farnley Fireclay Works	58
Featherstone Main Colliery	89
Fenton Murray & Jackson	147
Ferrybridge Power Station	76
Firbank, J. T.	117
Flockton Coal Co Ltd	44
Fogg, N.B.	118
Forge Quarry	26
Forge Lane Works	21
Fotherby & Son, H.	118
Fountain & Son Ltd, George	45
Fountain & Burnley Ltd	45
Fowler & Co (Leeds) Ltd, John	46, 147
Fox Holes Colliery	99
Frickley Colliery	32
Fryston Colliery	16
G.E.C.Machines Ltd	47
G.K.N. Steelstock Ltd.	47
Gabbutt & Owen	118
Garforth Collieries	46
Gates & Thomas	119
Gildersome Foundry	148
Gilstead Filter Beds	25
Glasshoughton 
     & Castleford Collieries Ltd	48
Glasshoughton Coking Plant	100
Glasshoughton Colliery	48
Gorple Reservoir	125
Gorpley Reservoir	126
Gould Ltd, Isaac	119
Green & Son Ltd, Thomas	148
Green & Sons Ltd, E.	48
Green Withens Reservoir	130
Greenwood & Batley Ltd	49, 148
Greetland Factory	72
Haigh Ltd, G. & J.	49
Haigh Colliery	45
Halifax Corporation	50
Halifax Gas Works	80
Hammerton Street Depot	173
Harehills Fireclay Mine & Colliery	59
Hartley Bank Colliery	44
Hart, M.	158
Hawksworth Quarry	97
Headlands Glass Works	87
Hemsworth Colliery	89
Henry Lovatt & Co	125
Hewenden Reservoir	26
Hickson & Partners Ltd.	50
Hodsman & Sons (1928) Ltd, George	50
Holden & Sons Ltd, Isaac	51
Hollingthorpe Colliery	39
Holliday & Co Ltd, L.B.	51
Holliday & Sons Ltd, R.	52
Holme & King Ltd	119
Horbury Junction Iron Co Ltd	52
Horbury Junction Wagon Works	86
Horbury Junction Works	85
Horbury Sand & Gravel Works	98
Howdenclough Light Railway	156
Howden Clough Colliery	61
Howley Park & Woodkirk Brickworks	18
Howley Park Coal & Cannel Co Ltd	53
Howley Park Colliery	53
Huddersfield Corporation	120
Huddersfield Gas Works	80
Hudson & Co, Robert	53, 148
Hudswell Badger Ltd	148
Hunslet Construction Work	106
Hunslet Engine Works	53, 149
Hunslet Iron Works	93
Hunslet Railway 	117
Hutchinson & Co Ltd	121
ID Howitt Ltd	158
Imperial Chemical Industries Ltd	54
Ingham's Fire Clay Co Ltd	55
Ingham's Pit	56
Ingham's Thornhill Collieries Ltd	56
John O’Gaunts Gravel Pit	20
Johnson (Mirfield) Ltd, Samuel	122
Jones, E.N.	159
Keighley & Worth Valley 
     Light Railway Ltd	160
Keighley Gas Works	81
Keighley Sewage Works	126
Kippax Colliery	61
Kirklees Light Railway Co Ltd	163
Kirkstall Forge	57
Kirkstall Goods Shed	159
Kirkstall Power Station	34
Kirkstall Road Depot	57
Kirkstall Sand & Gravel Ltd	105
Kitson & Co Ltd.	150
Abbey Light Railway	167
Ackroyd (Akeroyd?), Harry	144
Ackton Hall Colliery	15
Admiralty	15
Aire & Calder Navigation Company	106
Aire Valley Railway	156
Airedale Collieries Ltd	16
Airedale Foundry	150
Airedale Plant & Railway Works	151
Albion Works	49, 148
Allerton Bywater Colliery	16
Allerton Main Collieries	23
Alston Works	51
Armitage & Sons Ltd, George	18
Armley Canal Road Station	156
Armley Mills	164
Armstrong Whitworth & Co Ltd	106
Arnold & Son Ltd, Harold	20, 106
Arnott, Young & Co Ltd, W.H.	19
Arthlington Station 	171
Associated Chemical Companies Ltd	20
Austin & Sons (Dewsbury) Ltd, J	21
B.A. Collieries Ltd	21
Baker & Firbank	110
Baldry & Yerburgh	111
Baker & Sons, Charles	109
Balmforth Bros. Ltd	144
Bargate Motor Spares (Ltd?)	144
Barnbow Colliery	46
Barnbow No.1 Filling Factory	71
Barnbow Ordnance Factory	72
Barnes & Beckett	111
Bayliss & Gripper	112
Bentley & Co. (Bradford) Ltd, H.	144
Bentley Watson & Sons, John	154
Benton & Woodiwiss	112
Benzol & By-Products Ltd	21
Bever, Dorling & Co Ltd	22
Bingley & Co	145
Binns & Co, Walter	113
Birkshall Gas Works	79
Birtwistle, T.	113
Blakeborough & Sons Ltd, J.	22
Booth Dean Dam	136
Bower Bros	113
Bower Ltd, T. & R.W.	23
Bowling Dye Works	86
Bowling Iron Co Ltd	24
Bowling Ironworks	22, 24
Boyne Engine Works	150
Bradford Industrial Museum 
         & Horses At Work	157
Bradley & Holmes Ltd	145
Bradley Factory	71
Bray & Co, Jas	113
Brier (James), Son & Wilson	114
Briggs & Co Ltd, A.R.	26
Briggs Collieries Ltd	26
British Ropes Ltd	30
Broadbent & Sons Ltd, Thomas	145
Brookes Ltd	31
Brownhill Reservoir	124
Buckler, J.	156
Buckley, H.E.	114
Butler & Co Ltd, John	32
Butler Ltd, G.W.	32
Butterley & Blakeley Reservoirs	121
Calder Quarry	43
Calder Vale Iron Works	99
Caphouse Collieries	42
Caphouse Colliery	174
Carlton Main Colliery Co Ltd	32
Cawood Wharton & Co Ltd	33
Central Electricity Generating Board	34
Central Ironworks	145
Chapman, John R.	114
Charlesworth’s Collieries	37
Chellow Heights Waterworks	25
Chevet Tunnel	106
City of Bradford	25, 157
Clarence Iron & Steel Works	92
Clarke, John Hall	114
Cliffe Coal & Fireclay Co Ltd	39
Cobra Railfreight Ltd.	39
Coborn Works?	145
Cohen, Sons & Co Ltd, George	40, 145
Combs Pit	56
Copley Sewage Works	50
Crawford, R.C.	115
Crawshaw & Warburton Ltd	41
Crigglestone Colliery & Coke Ovens	21
Crossley Evans Ltd.	41
Crowley, Russell & Co Ltd	147
Dalton Works & Turnbridge Works	54
Deerhill & Blackmoorfoot Reservoirs	120
Denby Dale Pipe Works	77
Denby Grange Collieries Ltd	42
Diesel Engine Traders Ltd	147
Dobbins Yard	158
Dockfields Sewage Works	88
Donkin, John	115
Dorman Long & Co Ltd	43
Dransfield & Co	116
Dudley Hill Station Scrapyard	19
East Ardsley Collieries	52
East Ardsley Ironworks	100
Knight & Co, E.	122
Knight & Son (Boilers) Ltd, Allen	150
Knostrop Purification Works	101
Leeds City Council & Museum	163
Leeds City Tramways	123
Leeds Corporation	57
Leeds De-Tinning Ltd	58
Leeds Fireclay Co Ltd	58
Leeds Forge Co Ltd	59, 138
Leeds Industrial Museum	164
Leeds New Station	116
Leeds Phosphate Works Ltd	60
Leeds Sand & Gravel Co Ltd	60
Leeds Steel Works	87
Lehane, Mackenzie & Shand Ltd	124
Lightcliffe Chemical 
     & Paving Slab Works 	31
Lindsay Parkinson & Co Ltd, Sir	131
Locke & Co (Newland) Ltd	61
Lockwood & Elliott Ltd	63
Lodge Ltd, Henry	63
Lofthouse Brickworks	18
Lofthouse Colliery	63
Lowe, P.N.	167
Low Laithes Colliery	64
Low Moor & Water Lane Ltd	66
Low Moor Alloy Steels Ltd	65
Low Moor Munitions Co Ltd	66
Lower Laithe Reservoirs 	127
Lumb, Benjamin	126
Mackay, John	126
Manning Wardle & Co. Ltd.	150
Manston Coal Co Ltd	67
Mclaren Ltd, J & H	150
Meadow Lane Gas Works	81
Meltham Silica Firebrick Co Ltd	67
Menston Mental Asylum 	97
Middleton Broom Colliery	68
Middleton Railway Trust Ltd	168
Midland Engine Works	150
Midland-Yorkshire Tar Distillers Ltd	69
Miles Druce	47
Milnes, Stansfield & Co	70
Ministry Of Munitions	71
Ministry Of Supply	72
Mirvale Chemical Co Ltd	74
Moderna Mills	75
Monckton Coke & Chemical Co Ltd	75
Monk & Newell	127
Monk Bridge Works	72
Moorside Mills	157
Morrison & Mason Ltd	127
Moss Moor Catchwater 	109
Mousley, W.T.	128
National Coal Mining 
     Museum for England	174
National Museum 
     of The Working Horse	158
National Power plc	76
Naylor Bros	77, 129
Neale A.	170
Nelson, Thomas	129
New Monckton Collieries	78
New Sharlston Colliery	79
New Wortley Gas Works	82
Newlay Wheel Co Ltd	77
North Bierley Purification Works	104
North Eastern Gas Board	79
Nostell Colliery	82
Nowell, J.D.	129
Ogdens Metals Ltd	151
Old Flockton Collieries	70
Old Roundwood Colliery	92
Oliver & Sons, Thomas	130
Oliver Ltd, J.C.	151
Oulton Brickworks &Quarry	18
Parker & Co, W.R. 	132
Park Hill Colliery	61
Park Mill Colliery	91
Pawson Brothers Ltd	83
Peckfield Colliery	30
Peel Ings Foundry	144
Perseverance Iron Works	99
Phoenix Works	47
Plasmor Ltd	83
Pontefract Collieries Ltd	84
Pool Quarry	98
Pope & Pearson Ltd	84
Powergen plc	85
Price & Wills	133
Prince of Wales Colliery	84, 93
Prorail Ltd	85
Prospect Ironworks	99
Prospect Works	147
Rail Management Systems Ltd	151
Railcar Services Ltd	86
Railway Foundry, Jack Lane	148
Ravens Lodge Colliery	49, 55
Ripley & Son Ltd, Edward	86
Roberts & Co (1927) Ltd, Charles	86
Rockware Glass Ltd	87
Rothwell Brickworks	98
Royal Ordnance Factory	73
Royd Edge Quarries	67
Royds Green Munitions Factory	143
Ryburn Reservoir Construction	136
Ryhill Main Colliery	63
Savile Colliery	26
Scott Ltd, Walter	87
Seacroft Hospital 	106
Sharlston West Colliery	79
Shawcross Colliery	41
Shipley Urban District Council	88
Skelton Grange Power Station	35, 108
Smith & Knight	133
Smithfield Ironworks	148
Snydale Colliery	27
South Kirkby Colliery	90
South Kirkby Plant Depot	136
South Kirkby, Featherstone 
     & Hemsworth Collieries Ltd	89
Springhill Farm	158
St. Johns Colliery	62
Standedge Tunnel 	129, 140
Stanhope, T.	171
Stanley Ferry Gravel Pit	33
Stanningley Yard	40
Steam Plough Works	46, 147
Steeton Storage Depot	73
Storr’s Hill Wagon Works	86
Stourton Sand & Gravel Quarries	60
Stourton Works	70, 100
Stringer & Son Ltd	91
Sun Foundry	154
Tanks & Drums Ltd	92
Tarred Slag Works	50
Taylor & Sons, Josh	134
Taylor & Thompson	134
Taylor Bros	92
Taylor, George	133
Temple Newsam Plant Depot	131
Terry, Greaves & Co Ltd	92
The Hunslet Engine Co Ltd	149, 159
The Railway Foundry	155
The Round Foundry	147
Thompson, R.T.	135
Thornhill Coking Plant	56
Thornhill Power Station	36
Thornton Moor Reservoir	104
Thorp Arch Factory	73
Thorpe Brickworks	19
Thyssen Tunnelling Ltd	136
Tingley Gas Works	82
Todd, Charles	154
Transperience Museum	172
Tyers, Middleton & Co	93
UK Coal Mining Ltd.	93
Upton Colliery	43
Vanguard Works	151
Vickers Defence Systems Ltd	95
Victoria & Newton Lane Collieries	53
Victoria Colliery	49
Wakefield Corporation	136
Wakefield Power Station	36
Waller, T.J.	137
Walmesley & Co, M.W.	137
Ward Ltd, Thos.W.	138
Water Haigh Colliery	27
Waterloo Colliery	95
Waterloo Main Colliery	96
Weetwood Pipeline 	124
Wellington Foundry	44
West Ardsley & Tingley Collieries	101, 138
West End Colliery	21
West Riding Colliery	84
West Riding County Council	97, 138
West Yorkshire Colliery	67
West Yorkshire Transport Museum	172
Wheldale Colliery	17
Whitaker & Sons Ltd, B.	97
Whitaker Bros Ltd	139
Whitehall Road Machinery Depot	15
Whitham & Sons, J.	99
Whitwood Chemical Works	29
Whitwood Coal Briquetting Plant	34
Whitwood Colliery	27
William Whiteley & Sons Ltd	99
Williams, Lee & Thomas	140
Wilson & Co, E.B.	155
Wilson & Son, John	140
Wilson, A.J.	173
Wilson & Son, Jas	140
Wilson Lovatt & Sons Ltd	126
Witham, Samuel	99
Withens Clough Reservoir 	118
Wood & Sons, W.	99
Woodkirk Quarry	83
Woodroyd Dyeworks	66
Woolley Colliery	45
Wrenthorpe Colliery	64
Wrigley Ltd, Thomas	141
Yorkshire Coking & Chemical Co Ltd	100
Yorkshire Hennibique 
     Contracting Co Ltd	142
Yorkshire Imperial Metals Ltd	100
Yorkshire Iron & Coal Co Ltd	100
Yorkshire Mining Museum Trust	174
Yorkshire Water Authority	101, 102
Yorkshire Water plc	104