Warning! This article contains SPOILERS for Peaky Blinders season 6.Peaky Blinders spans decades of the 20th century, and the five main siblings in the Shelby family aged quite a bit over its six seasons. The Shelby family tree is quite complicated as it is, and part of the reason it’s so hard to tell who’s in the family and who isn’t is because the show jumps through the early 20th century so frequently. Each season of Peaky Blinders jumps forward years at a time, and one season even moves forward half a decade in one go. The show started out in 1919, but by Peaky Blinders season 6, it had already reached 1934.

https://screenrant.com/how-old-shelby-siblings-are-peaky-blinders/