There is some discrepancy as to when Dunlin was born, as the tree appears to list two dates: 1710 and 1750. Either way, he was almost certainly born in the 18th century. Through his father, Dunlin is the grandson of Garnet Redfern and Fletcher Marsh, and the great-grandson of Hunter Redfern and Maeve Harman. Dunlin married a woman named Jasmine Thorn, and had at least one son, Sterling Redfern. The tree implies that he is the great-grandfather of Alder Redfern, father of Rowan, Ash, Kestrel and Jade, and Madder Rasmussen (nee Redfern), the mother of James Rasmussen. He is also implied to be a direct ancestor of Mal Harman, the first vampire-witch hybrid in the series.
A dunlin is a type of bird, known as waders or shorebirds (in North America), who are known to live along shorelines or mudflats, wading through water to find food (hence the name 'wader'). Therefore, Dunlin has a traditional lamia name.