Multiple twins in family

[aghadowey]

My grandmother's sister had two sets of twins but highest number to one woman I can remember hearing about was the grandmother of a cousin's wife who had 12 children- SIX sets of twins 

[KGarrad]

Which census are they shown on?  Have you checked freebmd or GRO online for their respective births?  It is sometimes possible for children to appear as twins on a census if born close together

My mother used to say that children born in the same year were known as 'Irish twins'.  (She was Irish).  Also sometimes censuses had to round up/round down  ages so birth date differences that included months may have been lost.

Ages rounded down only for 1841 census.
Never rounded up.

[Top-of-the-hill]

  From Diana's post - "more likely the tendency to release two or more eggs would be an inherited trait through the female side."
   This would confirm my feeling about my husband's ancestry. One set of twins in each generation was a boy/girl pair.