Four or more generations of descendants of Mary Heffernan (1839-1931) if they are properly linked:
1. Mary Heffernan (1839-1931)
- 2. Mary Gertrude Mylott (1864-1931)
- 2. Honora Mylott (1867-1938)
- 2. Margaret Mylott (1869-1938)
- 2. Patrick James Mylott (1871-1946)
- 2. Edmund Joseph Mylott (1873-1938)
- 2. Nora Mylott (1873-?)
- 2. Eva Theresa Mylott (1875-1920)
- 3. Hutton Peter Gibson (1918)
- 4. Patricia Gibson (?-?)
- 4. Sheila Gibson (?-?)
- 4. Mary Bridget Gibson (?-?)
- 4. Kevin Gibson (?-?)
- 4. Maura Gibson (?-?)
- 4. Mel Columcille Gerard Gibson (1956)
- 5. Hannah Gibson (1980) ... (more)
- 5. Edward Gibson (1982) ... (more)
- 5. Christian Gibson (1982) ... (more)
- 5. Willie Gibson (1985) ... (more)
- 5. Louis Gibson (1988) ... (more)
- 5. Milo Gibson (1990) ... (more)
- 5. Tommy Gibson (1999) ... (more)
- 4. Daniel Gibson (?-?)
- 4. Christopher Gibson (?-?)
- 4. Donal Gibson (?-?)
- 4. Anne Gibson (?-?)
- 4. Andrew Gibson (?-?)
- 3. Alexis Mylott Gibson (1921-1967)
- 3. Hutton Peter Gibson (1918)
- 2. Catherine Mylott (1878-1957)
- 2. Johanna Agnes Mylott (1879-1941)
- 2. Ellen Amanda Mylott (1882-1951)