Samuel Alvis had 3 known siblings
- Mary Alvis baptised 15 April 1739, married James Stanbury 10 April 1765.
- George Alvis baptised 18 May 1746.
- John Alvis baptised 9 December 1752 died 24 September 1780, married Ruth Harris 5 December 1773.
He also had a half sister, Diana Harding from his Mother's first marriage.
Further Alvis details available from Rootsweb (Note this is an external link!)
