
Henry Sinclair, 1st Earl of Orkney is your 21st great grandfather.
You
→ Staff Sgt. Billy M. Gross
your father → William Monroe Gross
his father → Ellison Monroe Gross, Jr.
his father → Ellison Monroe Gross, Sr.
his father → Elijah Mosley Gross
his father → Ellison Lafayette Gross
his father → Solomon E. Gross, II
his father → Mary Polly (Irwin) Gross
his mother → Gen. Robert Robert Irwin
her father → William Irwin
his father → Robert Irvine
his father → David Irvine
his father → Robert Irvine
his father → Magdalene Scrimgeour
his mother → Margaret Seton
her mother → Mary Gray
her mother → Marion Ogilvy
her mother → Helen Sinclair, Baroness Ogilvy of Airlie
her mother → Henry Sinclair, 3rd Lord Sinclair
her father → William "the Waster" Sinclair, 2nd Lord Sinclair
his father → William Sinclair, 1st Earl of Caithness, 3rd Earl of Orkney
his father → Henry Sinclair, 2nd Earl of Orkney
his father → Henry Sinclair, 1st Earl of Orkney
his father