This grouping of trees includes people with primarily the surname variants: Serginson, Sergison and Sergenson. There are seven trees in this grouping as follows:
- Sergisons of Cuckfield Park – a landed gentry family.
- Sergisons of Holme on Spalding Moor – a small group of people.
- Serginsons – based in Derbyshire and Cumberland and headed up by James Sergisson.
- Serginsons – based in Nottinghamshire and Lincolnshire.
- Serginsons – based in Lancashire.
- Serginsons – based in Lancashire and Ireland.
- Sergensons from Lancashire and Westmorland.
Please note that the sources used to develop the trees include FreeBMD, commercial websites and the GRO.