This was involved with the following buildings or structures from the date specified (click on an item to view details): |
| Date started | Building name | Town, district or village | Island | City or county | Country | Notes |
| 1869 | St Clement Street School | | | Aberdeen | Scotland | |
| 1870s | Cottages Ornés, Albury Road | | | Aberdeen | Scotland | |
| 1870 | Pitcaple House | | | Aberdeenshire | Scotland | Additions and service court, red granite columns in hall and stair |
| 1872 | Easter Kinmundy House | Skene | | Aberdeenshire | Scotland | Reconstruction |
| c. 1872 | Pair of cottages ornées | | | Aberdeen | Scotland | |
| 1874 | College of Nursing Club and house at no 1 Fonthill Road | | | Aberdeen | Scotland | No 1 Fonthill Road built |
| 1874 | Ferryhill Free Church | Ferryhill | | Aberdeenshire | Scotland | |
| 1875 | 13 Queen's Road | | | Aberdeen | Scotland | |
| 1875 | Church of Scotland Training College | | | Aberdeen | Scotland | Additions? |
| 1875 | Commerce Street School | | | Aberdeen | Scotland | |
| 1875 | Inverurie Free Church | Inverurie | | Aberdeenshire | Scotland | Rebuilding - selected for job after small competition |
| 1875 | Inverurie School | Inverurie | | Aberdeenshire | Scotland | Alterations |
| 1876 | Maryfield House | Turriff (near) | | Aberdeenshire | Scotland | |
| 1876 | Villa, Queen's Road | | | Aberdeen | Scotland | |
| 1876 | Villa, Queen's Road | | | Aberdeen | Scotland | |
| 1878 | Blackhill | Kinmundy | | Aberdeenshire | Scotland | Alterations |
| 1878 | Causewayend Free Church and Hall | Causewayend | | Aberdeen | Scotland | Hall |
| 1878 | Gilcomston Chapel of Ease | Gilcomston | | Aberdeen | Scotland | Additions and repairs amounting to complete reconstruction (mainly responsible) |
| 1878 | Queen's Terrace | | | Aberdeen | Scotland | |
| 1878 | Rathen School | Rathen | | Aberdeenshire | Scotland | Alterations and houses |
| 1879 | Brown's School | | | Aberdeen | Scotland | West and East extensions |
| 1880 | Buckie Parish Church | Buckie | | Banffshire | Scotland | Replacing chapel of ease |
| 1880 | Cottages, Marine Terrace | Ferryhill | | Aberdeen | Scotland | McMillan mainly responsible for revising and completing scheme |
| 1880 | Houses for Aberdeen and Northern Heritable Company | | | Aberdeen | Scotland | |
| 1881 | Causewayend Free Church and Hall | Causewayend | | Aberdeen | Scotland | McMillan mainly responsible |
| 1881 | Cookney Chapel of Ease | Cookney | | Kincardineshire | Scotland | |
| 1881 | Free Church | Boddam | | Aberdeenshire | Scotland | McMillan mainly responsible |
| 1881 | Fyvie Castle and ancillary buildings | Fyvie | | Aberdeenshire | Scotland | Repairs |
| 1881 | House and shop, Netherkirkgate | | | Aberdeen | Scotland | |
| 1881 | Rubislaw Den House and Gordon House | | | Aberdeen | Scotland | |
| 1881 | Terraced houses, Carden Place | | | Aberdeen | Scotland | Completed terrace |
| 1883 | Five houses, Claremont Street | | | Aberdeen | Scotland | |
| 1883 | Four houses, Claremont Place | | | Aberdeen | Scotland | |
| 1883 | Fyvie Parish Church | Fyvie | | Aberdeenshire | Scotland | Churchyard walls with gates and railings - probably (Buildings of Scotland) |
| 1883 | Royal Hotel | Keith | | Banffshire | Scotland | |
| 1884 | 111, 113 Union Street | | | Aberdeen | Scotland | |
| 1884 | 28 Netherkirkgate | | | Aberdeen | Scotland | |
| 1884 | 34-36 Gallowgate | | | Aberdeen | Scotland | |
| 1884 | House, Bridge of Dee Road | | | Aberdeen | Scotland | |
| 1884 | House, St Swinthin Street | | | Aberdeen | Scotland | |
| 1884 | Two houses, North Charlotte Street | | | Aberdeen | Scotland | |
| c. 1884 | 64 Fonthill Road and 73-75 Albury Road | | | Aberdeen | Scotland | |
| 1885 | 38 Union Street | | | Aberdeen | Scotland | |
| 1885 | Ferryhill Free Church Hall | Ferryhill | | Aberdeen | Scotland | |
| 1885 | Rothiemurchus Free Church | Rothiemurchus | | Inverness-shire | Scotland | |
| 1886 | House, Crown Street | | | Aberdeen | Scotland | |
| 1886 | House, Deemount Terrace | | | Aberdeen | Scotland | |
| 1886 | House, Summerfield Terrace | | | Aberdeen | Scotland | |
| 1887 | Two houses, Polmuir Road | | | Aberdeen | Scotland | |
| 1888 | Two houses, Whitehall Road | | | Aberdeen | Scotland | |
| 1889 | Torry Free Church | Torry | | Aberdeen | Scotland | New church. (Buildings of Scotland incorrectly associates this with the practice of D & J R McMillan. AT this date John Ross McMillan was apprenticed to his father and the firm was not formed until some time later). |
| 1890 | Cornhill Free Church | Cornhill | | Banffshire | Scotland | Interior remodelled |
| 1890 | House, Erskine Street | | | Aberdeen | Scotland | |
| 1891 | Property at Rosemount Terrace | | | Aberdeen | Scotland | |
| 1892 | Four houses, Belvidere Crescent | | | Aberdeen | Scotland | |
| 1892 | Four houses, Belvidere Crescent | | | Aberdeen | Scotland | |
| 1892 | Mackie Academy | Stonehaven | | Kincardineshire | Scotland | Won competition and secured job |
| 1892 | Peterhead Library and Museum | Peterhead | | Aberdeenshire | Scotland | |
| 1893 | Aberchirder UP Church | Aberchirder | | Banffshire | Scotland | |
| 1893 | Cluny Parish Church | Cluny | | Aberdeenshire | Scotland | NW vestry added |
| 1893 | Hay Memorial Hall | Cornhill | | Banffshire | Scotland | |
| 1893 | Strichen Free Church | Strichen | | Aberdeenshire | Scotland | |
| 1893 | Two houses, Belvidere Place | | | Aberdeen | Scotland | |
| 1894 | Brechin Municipal Buildings | Brechin | | Angus | Scotland | |
| 1894 | Brechin Post Office | Brechin | | Angus | Scotland | |
| 1894 | Ferryhill Free Church | Ferryhill | | Aberdeenshire | Scotland | Additions, including galleries |
| 1894 | House, Menzies Road | Torry | | Aberdeen | Scotland | |
| 1894 | Lochinver Free Church and manse | Lochinver | | Sutherland | Scotland | |
| 1894 | Wick Post Office | Wick | | Caithness | Scotland | |
| 1895 | Property, Market Street | | | Aberdeen | Scotland | |
| 1895 | Villa, 6 Queen's Road | | | Aberdeen | Scotland | |
| 1896 | New Pitsligo Parish Church | New Pitsligo | | Aberdeenshire | Scotland | Vestry enlarged |
| 1896 | Property, Woolmanhill | | | Aberdeen | Scotland | |
| 1897 | Ardlui | Stonehaven | | Kincardineshire | Scotland | |
| 1897 | Beechgrove Free Church | | | Aberdeen | Scotland | Placed third in competition |
| 1897 | East Church | Peterhead | | Aberdeenshire | Scotland | Alterations |
| 1897 | Police station and Police house | Dufftown | | Banffshire | Scotland | |
| 1897 | Two houses, Albury Road and Albury Place | | | Aberdeen | Scotland | |
| 1898 | Crown Hotel | Stonehaven | | Kincardineshire | Scotland | Extension |
| 1898 | Four houses, Bedford Road | | | Aberdeen | Scotland | |
| 1898 | Marine Hotel | Kirkton of Slains | | Aberdeenshire | Scotland | |
| 1898 | Property, Belmont Street and Gaelic Lane | | | Aberdeen | Scotland | |
| 1898 | Property, King Street | | | Aberdeen | Scotland | |
| 1898 | Turriff Free Church | Turriff | | Aberdeenshire | Scotland | |
| 1898 | Unitarian Church | | | Aberdeen | Scotland | Not built until 1905 |
| c. 1898 | Alexandra Hotel | Fraserburgh | | Aberdeenshire | Scotland | |
| 1899 | Fochabers Free Church | Fochabers | | Morayshire | Scotland | |
| 1899 | Free Church at Aberlour | Aberlour | | Banffshire | Scotland | Extension |
| 1899 | Portknockie UP Church | Portknockie | | Banffshire | Scotland | Remodelling |
| 1899 | Two houses, Bedford Road | | | Aberdeen | Scotland | |
| Late 1800s | Ordiquhill UF Manse | Ordiquhill | | Banffshire | Scotland | Remodelled - possibly by McMillan (HS) |
| 1900 | Cullen Free Church | Cullen | | Banffshire | Scotland | |
| 1900 | St Andrews UF Church | Blairgowrie | | Perthshire | Scotland | Won competition |
| 1901 | Cluny Manse | Cluny | | Aberdeenshire | Scotland | Improvements |
| 1901 | Cults Free Church | Cults | | Aberdeenshire | Scotland | New church |
| 1901 | Enzie Parish Church hall | Portgordon | | Morayshire | Scotland | |
| 1901 | House, West Church Street | Buckie | | Banffshire | Scotland | |
| 1901 | Houses, Albury Place | | | Aberdeen | Scotland | |
| 1901 | King Street UF Church | | | Aberdeen | Scotland | |
| 1901 | Seven houses, Fonthill Terrace | | | Aberdeen | Scotland | |
| 1901 | Two dwelling houses, Hamilton Place | | | Aberdeen | Scotland | |
| 1901 | Two houses, King's Gate | | | Aberdeen | Scotland | |
| 1901 | Villa for Pat Cummings | Keith | | Aberdeenshire | Scotland | |
| 1902 | Church of Christ | | | Aberdeen | Scotland | |
| 1902 | Premises of A MacDonald & Sons, merchants | Fraserburgh | | Aberdeenshire | Scotland | |
| 1903 | House and shops, Commerce Street | | | Aberdeen | Scotland | |
| 1903 | New Pitsligo Parish Church | New Pitsligo | | Aberdeenshire | Scotland | Organ chamber added |
| 1903 | Six houses, Osborne Place | | | Aberdeen | Scotland | |
| 1903 | Stonehaven Town hall | Stonehaven | | Kincardineshire | Scotland | Additions and alterations |
| 1904 | Cornhill Free Church | Cornhill | | Banffshire | Scotland | Remodelled |
| 1904 | House, Fonthill Road | | | Aberdeen | Scotland | |
| 1904 | Shops and offices, Upperkirkgate | | | Aberdeen | Scotland | |
| c. 1904 | Premises, 69-75 Cross Street | Fraserburgh | | Aberdeenshire | Scotland | |
| 1905 | Good Templar's Hall | Buckie | | Banffshire | Scotland | |
| 1905 | School | Portessie | | Banffshire | Scotland | |
| 1906 | Four houses, Devanha Gardens | | | Aberdeen | Scotland | |
| 1906 | House, Devanha Gardens West | | | Aberdeen | Scotland | |
| 1906 | Two houses, Devanha Gardens | | | Aberdeen | Scotland | |
| 1906 | Two houses, near Devanha Gardens | | | Aberdeen | Scotland | |
| Before 1906 | Cullen Parish Church Hall | Cullen | | Banffshire | Scotland | |
| Before 1906 | Dunbeath Public Hall | Dunbeath | | Caithness | Scotland | |
| Before 1906 | Ordiquhill Public Hall | Ordiquhil | | Banffshire | Scotland | |
| Before 1906 | Public Hall | New Pitsligo | | Aberdeenshire | Scotland | |
| 1907 | Villa, 54 Rubislaw Den North | | | Aberdeen | Scotland | |
| 1908 | Blairgowrie Public School | Blairgowrie | | Perthshire | Scotland | Heightened by one storey |
| 1908 | Broadsea School (known as Fraserburgh North School at opening) | Fraserburgh | | Aberdeenshire | Scotland | |
| 1908 | Fraserburgh Academy | Fraserburgh | | Aberdeenshire | Scotland | Rebuilding - won competition |
| 1908 | The Hermitage | Stonehaven | | Kincardineshire | Scotland | |
| 1908 | Watten UF Church | Watten | | Caithness | Scotland | |
| 1909 | Institute | Wick | | Caithness | Scotland | |
| 1909 | Two Houses Devanah Gardens South | | | Aberdeen | Scotland | Both client and architect |
| 1909 | Wick High School | Wick | | Caithness | Scotland | |
| 1910 | Pair of Small Cottages | Buckie | | Banffshire | Scotland | |
| 1910 | Public Hall | Whitehills | | Banffshire | Scotland | |
| c. 1910 | Brodick Church | Brodick | Arran | Bute | Scotland | |
| 1911 | Farmhouse, Kingseat | Kingseat | | Aberdeenshire | Scotland | |
| 1912 | Advocates Hall | | | Aberdeen | Scotland | Conversion to cinema |
| 1912 | Alford Village Public School | Alford | | Aberdeenshire | Scotland | |
| 1912 | House, Queen Street | Buckie | | Banffshire | Scotland | |
| 1912 | Portknockie Public School | Portknockie, Rathven | | Banffshire | Scotland | |
| 1912 | Public School | Echt Kirktown | | Aberdeenshire | Scotland | |
| 1912 | The Post Office | Keith | | Banffshire | Scotland | Buildings of Scotland seems certain of authorship and date |
| 1913 | Pair of semi-detached villas | Stonehaven | | Kincardineshire | Scotland | |
| c. 1914 | Cottages in the grounds of Ashley House | | | Aberdeen | Scotland | |
| 1915 | Buildings for the Northern Co-operative Ltd | Stonehaven | | Kincardineshire | Scotland | |
| 1920 | War Memorial | Gamrie | | Banffshire | Scotland | |
| 1925 | King Memorial Hall | Grange | | Banffshire | Scotland | |
| 1925 | Two Houses, Deemount Avenue | | | Aberdeen | Scotland | |
| 1925 | Two Houses, Deemount Gardens, | | | Aberdeen | Scotland | |
| 1926 | Two Bungalows, Ashley Park Drive | | | Aberdeen | Scotland | |
| Before 1928 | Aberchirder Free Church | Aberchirder | | Banffshire | Scotland | |
| Before 1928 | Keith Free Church | Keith | | Banffshire | Scotland | |
| Before 1928 | St Paul Street School | | | Aberdeen | Scotland | |