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 Lincolnshire and Nottinghamshire.
- Serginsons and Sergensons from Lancashire and Westmorland.
- Sergisons – from Ireland, some of whom moved to Lancashire.
- Sergisons/Sargisons – living in Scotland, South East and with the most distant ancestor Edward Sergesson having been born in Scotland.
Please note that the sources used to develop the trees include FreeBMD, commercial websites and the GRO.