| Birth | 1 Jan 1875 | Tregaron Registration District, Cardiganshire | | | |
| Residence | From 1881 to 1891 | with his parents - Pencefn Drysgol, Caronisclawdd, Cardiganshire | | | |
| Education | Abt 1892 | Aberystwyth University, Cardiganshire |  | | |
| Occupation | 1895 | lecturer - Aspartia College of Agriculture, Cumbria | | | |
| Occupation | 1901 | Professor of Agriculture - the University College of Wales, Aberystwyth | | | |
| Residence | 1901 | with his parents - Abercoed, Llanddewi Brefi, Cardiganshire | | | |
| Occupation | 1904 | director - Tan-y-graig College Farm, Aberystwyth | | | |
| Marriage | 21 Jun 1907 | Llanbadarn Fawr Parish Church, Cardiganshire - Catherine Jane "Cassie" MORGAN |  | | |
| Residence (family) | 1911 | Gwynfa, Tregaron, Cardiganshire - Catherine Jane "Cassie" MORGAN | | | |
| Occupation | 1911 | Livestock Officer for the newly formed Farmers Advisory Board. | | | |
| Occupation | 1911 | lecturer in agriculture - University College of Wales, Aberystwyth, Cardiganshire | | | |
| Residence | 3 Dec 1918 | Gwynfa, Tregaron, Cardiganshire | | | |
| Residence (family) | 19 Jun 1921 | Gwynfa, Tregaron, Cardiganshire - Catherine Jane "Cassie" MORGAN | | | |
| Occupation | 19 Jun 1921 | Board of Agriculture Inspector and civil servant - Mid Wales | | | |
| Residence | 5 Apr 1928 | Y Fron, Tregaron, Cardiganshire | | | |
| Miscellaneous | 20 Sep 1928 | was the beneficiary of Robert Sibbald Rowland's will |  | | |
| Miscellaneous | From 1933 to 1935 | High Sheriff of Cardiganshire | | | |
| Residence (family) | From 1934 to 1954 | Argoed Hall, Tregaron, Cardiganshire - Catherine Jane "Cassie" MORGAN | | | |
| Miscellaneous | 21 Feb 1935 | was present at the Court of Privy Council - Buckingham Palace, London | | | |
| Residence (family) | 29 Sep 1939 | Argoed Hall, Tregaron, Cardiganshire - Catherine Jane "Cassie" MORGAN | | | |
| Occupation | 29 Sep 1939 | retired civil servant and farmer - Argoed Hall, Tregaron, Cardiganshire | | | |
| Death | 5 Jul 1954 | Argoed Hall, Tregaron, Cardiganshire | | | |
| Probate | 4 Oct 1954 | Oxford |  | | |