Alec Magill was born 29 March 1917 in 69 Skipton Street, Belfast, Ireland, United Kingdom to Thomas Aaron Magill (1880-1930) and Jane English (1881-1966) and died 10 November 1983 11 Tillysburn Park, Belfast, Northern Ireland, United Kingdom of Carcinoma of pancreas. He married Josephine Totton (1910-1996) 28 October 1938 in Newtownards Road Methodist Church, Belfast, Northern Ireland, United Kingdom.
Children
| Name | Birth | Death | Joined with |
| Jane Magill (1939-2003) | |||
| Josephine Maureen Magill (1942-living) | |||
| Patricia Ann Magill (1945-2014) | 10 June 1945 40A Ravensdale Street, Belfast, Northern Ireland, United Kingdom | 9 November 2014 30 Wynard Park, Belfast, Northern Ireland, United Kingdom | Stephen Brown (1942-living) |
Siblings
| Name | Birth | Death | Joined with |
| Agnes Magill (1900-1900) | |||
| Thomas Magill (1901-1942) | |||
| Joseph Magill (1906-2002) | |||
| John James Magill (1909-1917) | |||
| James Magill (1911-1914) | |||
| Andrew Magill (1912-1913) | |||
| Alexander Magill (1917-1983) | 29 March 1917 69 Skipton Street, Belfast, Ireland, United Kingdom | 10 November 1983 11 Tillysburn Park, Belfast, Northern Ireland, United Kingdom | Josephine Totton (1910-1996) |