Descent of Mary Smart
- Mary Smart was partner of Steven Wheeler and mother of Alice Wheeler
- Alice Wheeler was partner of William Stevens and mother of Reuben Stevens
- Reuben Stevens was partner of Ann Waylen and father of Joseph Stevens
- Joseph Stevens was partner of Mary Simmonds and father of Sarah Elizabeth Stevens
- Sarah Elizabeth Stevens was partner of William Charles Read and mother of Mabel Eleanor Read
- Mabel Eleanor Read was partner of William Edwin Stanier and mother of Roger William Stanier
- Roger William Stanier is partner of Maris Doreen Poole and father of Alan Michael Stanier