| Year | Month | Day | Name of Colliery | First Name | Surname | Page |
| 1920 | January | 2 | Unknown (Hamilton area) | Andrew Duncan | Prosser | FAI notice and death certificate |
| 1920 | January | 8 | Hallside | John | McIntosh | Lanarkshire accidents (natural causes) |
| 1920 | January | 13 | Murdostoun | Francis | McNally | Shotts accidents |
| 1920 | January | 21 | Holytown | James | Skiffington | Bothwell accidents page |
| 1920 | January | 25 | Bridgeness | Joseph | Murray | Lothians accidents |
| 1920 | January | 29 | Greenfield | William | Stannage | Hamilton accidents page |
| 1920 | January | 29 | Westrigg | John | McGarrity | Lothians accidents |
| Peter | Marshall | |||||
| George Ratcliffe | Sneddon | |||||
| 1920 | February | 5 | Woodside | Robert | McDonald | Dalserf pages |
| 1920 | February | 5 | Riddochill | John | Sneddon | FAI record – NAS |
| 1920 | February | 16 | Greenfield | John | McFarlane | Hamilton accidents page |
| 1920 | February | 19 | Gordon | George | Park | Beath accidents page |
| 1920 | February | 28 | Bowhill | Matthew | Donaldson | (Natural Causes) Auchterderran pages |
| 1920 | February | 25 | Dunnett Shale Mine | William | Crawford | FAI record – NAS |
| 1920 | March | 2 | Tower Mine | William | Murray | Dumfries accident pages |
| 1920 | March | 12 | Lochhead | Thomas | Buist | Fife accidents |
| 1920 | March | 16 | Easton | Samuel | Sweeney | Lothians accidents |
| 1920 | March | 20 | Bardykes | James | McKenna | Lanarkshire accidents |
| 1920 | March | 20 | Newton | William | Walker | Lanarkshire accidents |
| 1920 | March | 27 | Westwood | James | Torrance | Lothians accidents |
| 1920 | March | 30 | Shieldmains | John | Peebles | Ayrshire accidents |
| 1920 | April | 1 | Foulshiels | Jeremiah | Greeney | Lothians accidents |
| 1920 | April | 5 | Bellfield | James | Richardson | Lanarkshire accidents |
| 1920 | April | 13 | Garriongill | Stephen | Smith | Cambusnethan accidents |
| 1920 | April | 15 | Earnock | Morrison | Docherty | Hamilton accidents page |
| 1920 | April | 26 | Bothwell Castle | Donald | McFarlane | Bothwell Castle accidents page |
| William | McFarlane | |||||
| Anthony | Nowasaytis | |||||
| Peter | McGinn | |||||
| 1920 | May | 11 | Rutherglen | Hugh | Martin | Lanarkshire accidents |
| 1920 | May | 26 | Brigghills | James | Robb | Auchterderran pages |
| 1920 | May | 26 | Lassodie | William | Shoolbred | Beath accidents page |
| 1920 | May | 27 | Dalbeath | Daniel | Kean | Beath accidents page |
| 1920 | May | 30 | Minto | William | Galloway | Auchterderran pages |
| 1920 | May | 30 | Dysart | John | Clark | Fife accidents |
| 1920 | June | 1 | Auchengeich | John | Marley | Lanarkshire accidents |
| James | Mooney | |||||
| 1920 | June | 11 | Prestongrange | William | Ramsay | Lothians accidents |
| 1920 | June | 13 | Blairhall | Peter | Armour | Fife accidents |
| 1920 | June | 18 | Balbardie | Colin | Murray | Lothians accidents |
| 1920 | June | 20 | Dalbeath | Thomas | Cowan | Beath accidents page |
| 1920 | June | 21 | Blairenbathie | Robert | Walkinshaw | Beath accidents page |
| 1920 | July | 1 | Blairadam | Charles | McHale | Beath accidents page |
| 1920 | July | 14 | Lumphinnans | Thomas | Forrest | Beath accidents page |
| 1920 | August | 9 | Woodmuir | Hugh | Stewart | Lothians accidents |
| 1920 | August | 12 | Kames, Muirkirk | Thomas | Thomson | Muirkirk accidents page |
| 1920 | August | 28 | Herdshill | Andrew | McDowell | Cambusnethan accidents |
| 1920 | September | 3 | Bellfield | Walter | Baxter | Lanarkshire accidents |
| 1920 | September | 6 | Deans | William | Callendar | Lothians accidents |
| 1920 | September | 7 | Fauldhead | Matthew | Lindsay | Source – list published by Kirkconnel Parish Heritage Society |
| 1920 | September | 8 | Birkrigg | Alexander | Flannigan | Dalserf pages |
| 1920 | September | 18 | Daldowie | John | M'Ghee | Lanarkshire accidents |
| 1920 | September | 20 | Blairmuckhill | John | Young | Gas explosion |
| 1920 | September | 24 | Bo'ness | Thomas | Grant | Lothians accidents |
| 1920 | September | 25 | Curledubs, Broxburn | Walter | Gilbert | Lothians accidents |
| 1920 | September | 26 | Bowhill | Catherine Marshall | Kerr | Auchterderran pages |
| 1920 | September | 28 | Dumbreck | Donald | Macdonald | Stirlingshire accidents |
| 1920 | September | 29 | Foulshiels | Patrick | Lee | Lothians accidents |
| 1920 | October | 12 | Shale Mine, Deans | Alexander | Ellis | FAI record – NAS |
| 1920 | October | 13 | Kames | William Archibald | Dempster | Death certificate |
| 1920 | October | 16 | Shale Mine, Deans | Alexander | Fraser | FAI record – NAS |
| 1920 | November | 11 | Lady Ha' pit | Henry | Coulter | Ayrshire accidents |
| 1920 | November | 15 | Manor Powis | John | McGibbon | Stirlingshire accidents |
| 1920 | November | 23 | Kirkford | James | Smith | Beath accidents page |
| 1920 | November | 28 | NK | James | Flannigan | Death cert |
| 1920 | November | 29 | Blackrigg | Andrew | Clifford | FAI record – NAS |
| 1920 | November | 30 | Nellie | John | Bain | Auchterderran pages |
| 1920 | December | 7 | Carnock | James | Paterson | Stirlingshire accidents |
| 1920 | December | 22 | Aitken | Thomas | Farry | Beath accidents page |
| 1920 | December | 24 | Raith | Thomas | Forbes | Beath accidents page |
| 1920 | December | 24 | Kirkford | George | Chapman | Beath accidents page |
| 1920 | December | 30 | Muirhead | George | McCallum | Shotts accidents |
