| Dalgety and Company Limited | Vol.21.No.4.Page 10 |
| Dalgety K windmill | Vol.21.No.4.Page 10 (illus article) |
| Dalgety Self Oil windmill | - see - Dalgety K windmill |
| Dalgety Type K windmill | - see - Dalgety K windmill |
| Dalton, Len | Vol.23.No.2.Page 11 |
| Dangar, Gedye | Vol.20.No.3.Page 7 |
| Danks Billabong windmill | Vol.22.No.4.Pages 8, 9 |
| Danks Billabong windmill - 1924 Encased Gear Pattern | Vol.22.No.4.Pages 9 (illus), 10 |
| Danks Billabong windmill - 1932 Encased Gear Pattern | Vol.22.No.4.Page 10 |
| Danks Billabong windmill - Ball Bearing Pattern | Vol.22.No.4.Page 10 |
| Danks Billabong windmill - open geared | Vol.22.No.4.Pages 9 (illus), 10 |
| Vol.23.No.1.Page 1 (illus), 9 | |
| Danks Busy B windmill | Vol.22.No.4.Pages 10, 11 (illus) |
| Danks Canvas Sail windmill | Vol.22.No.4.Page 8 |
| Danks Coo-ee windmill | Vol.22.No.1.Page 6 |
| Vol.22.No.4.Page 11 (illus) | |
| Danks, John | Vol.23.No.1.Page 9 |
| Danks, John & Son Pty. Ltd. | Vol.22.No.1.Page 6 |
| Vol.22.No.4.Page 8 | |
| Vol.23.No.1.Pages 1, 5, 9 | |
| Danks Little Bill windmill | Vol.22.No.4.Page 10 |
| Danks syphon pump | Vol.23.No.2.Pages 9, 11 (illus) |
| Danks tail vanes | Vol.22.No.4.Pages 8-11 (illus article) |
| Vol.23.No.1.Page 1 | |
| Danks, Thomas | Vol.20.No.1.Page 5 |
| Danks - Titan windmill | Vol.20.No.1.Pages 5, 9 |
| Davis, C. H. & Co. | Vol.22.No.2.Page 4 |
| Day, William | Vol.20.No.3.Page 7 |
| Dean & McCabe Windmills Pty. Ltd. | Vol.22.No.2.Pages 6-7 (illus article) |
| Dean, Richard | Vol.22.No.2.Page 7 |
| Defiance tail vanes | Vol.20.No.3.Page 9 (illus article) |
| Defiance windmill | Vol.20.No.4.Page 11 |
| Vol.22.No.1.Page 6 | |
| De Goyon, Charles | Vol.23.No.2.Page 2 |
| De Goyon wind generator | Vol.23.No.2.Page 2 |
| Denny Bros. Limited | Vol.21.No.2.Pages 5, 6, 7 |
| Desert Collectors (TV show) | Vol.21.No.3.Page 11 |
| Dexter windmill (USA) | Vol.20.No.3.Page 6 (illus article) |
| Vol.21.No.1.Pages 3, 5-7 (illus article) | |
| Vol.22.No.2.Page 8 (illus article) | |
| D. G. Harrison & Sons | - see - Harrison, D. G. & Sons |
| Diabolo Separator Co. | Vol.22.No.2.Page 4 |
| Direct Acting windmills | - see - Armour Johnston Simplex windmill |
| - see - Booth DA windmill | |
| - see - Sharp windmill | |
| - see - Southern Cross 1911 Direct Action windmill | |
| - see - Southern Cross 1913 Western Model windmill | |
| - see - Southern Cross 1915 Pattern windmill | |
| - see - Southern Cross A Pattern windmill | |
| - see - Southern Cross AB Pattern windmill | |
| - see - Southern Cross AE Pattern windmill | |
| - see - Southern Cross AG Pattern windmill | |
| - see - Southern Cross E Pattern windmill | |
| - see - Southern Cross JA Pattern windmill | |
| - see - Southern Cross Large A Pattern windmill | |
| - see - Southern Cross R Pattern windmill | |
| Doctor's Creek Provisional School | - see - Doctor's Creek State School |
| Doctor's Creek State School | Vol.21.No.2.Page 1 |
| Donoghue, John E. | Vol.23.No.2.Page 3 |
| Douglas pump | Vol.20.No.4.Page 9 |
| Dowling, Thomas | Vol.21.No.1.Pages 8, 9 |
| Dowrie, G. & J. | Vol.23.No.2.Page 8 |
| Duc de Feltre | - see - De Goyon, Charles |
| Duncan, P. and D. | Vol.20.No.1.Page 5 |
| Duncan's OK windmill | Vol.20.No.1.Page 5 |
| Dunn, John (Senior) | Vol.22.No.1.Page 9 |
| Duplex Vaneless windmill (USA) | Vol.21.No.2.Page 11 (illus) |
| Durrand, Agnes | Vol.23.No.2.Page 8 |
| Durrand, Allan | Vol.23.No.2.Page 8 |
| Durrand, Catherine | Vol.23.No.2.Page 8 |
| Durrand, Elizabeth | Vol.23.No.2.Page 8 |
| Durrand, Elsie | Vol.23.No.2.Page 8 |
| Durrand, Eva | Vol.23.No.2.Page 8 |
| Durrand, George | Vol.23.No.2.Pages 6-8 (illus article) |
| Durrand, Hazel | Vol.23.No.2.Page 8 |
| Durrand, Isabella | Vol.23.No.2.Page 8 |
| Durrand, John | Vol.23.No.2.Page 8 |
| Durrand, John (Senior) | Vol.23.No.2.Page 8 |
| Durrand, Mabel | Vol.23.No.2.Page 8 |
| Durrand, Mary (nee Kelly) | Vol.23.No.2.Page 8 |
| Durrand, Nella | Vol.23.No.2.Page 8 |
| Durrand, Olive | Vol.23.No.2.Page 8 |
| Durrand, Robert | Vol.23.No.2.Page 8 |