In 18th & 19th Century Britain families generally tended to name their children in a specific pattern as follows:

Males

• First-born Son - father's father
  

• Second-born Son - mother's father
  

• Third-born Son - father
  

• Fourth-born Son - father's eldest brother
  

• Fifth-born Son - father's 2nd oldest brother or mother's oldest brother
  

Females

• First-born Daughter - mother's mother
  

• Second-born Daughter - father's mother
  

• Third-born Daughter - mother
  

• Fourth-born Daughter - mother's eldest sister
  

• Fifth-born Daughter - mother's 2nd oldest sister or father's oldest sister