Four or more generations of descendants of Mary Ann Howell Arbuthnot (1816-1905) if they are properly linked:
1. Mary Ann Howell Arbuthnot (1816-1905)
- 2. William Daniel Jacobus (1840-1940)
- 2. Eliza Van Ness Jacobus (1841-1891)
- 3. Susan Ella Tolfree (1862-1927)
- 4. Francis Tolfree Robinson (1887-1970)
- 5. Frances Muriel Robinson (1917-1993) ... (more)
- 5. Gladys Susan Robinson (1918) ... (more)
- 5. Ada Gwendolyn Robinson (1925) ... (more)
- 5. Howard Curtis Robinson (1926) ... (more)
- 4. Lillian F. Robinson (1884-1973)
- 4. George William Robinson (1889-1975)
- 4. Francis Tolfree Robinson (1887-1970)
- 3. Mary Tolfree (1862-1940)
- 3. Bernice Mabel Tolfree (c1864-)
- 3. Lillian Frances Tolfree (c1866-)
- 3. Susan Ella Tolfree (1862-1927)
- 2. Monroe Jacobus, Jr. (1844-)
- 2. Frank Jacobus (c1850-)
- 2. Stephen Miller (c1854-)