6 siblings whose first names correspond to "who, what, when, where, why, how".
Middle names are your choice.
Who: a recognizable name of a famous person (for example 'Washington' or 'George Washington' as a double name, but not just 'George')
What: a noun name (as 'wordy' as possible in English, for instance use Rose instead of Rosa, Moon instead of Luna, Sky instead of Ciel, etc.)
When: the name of a month, a day, name with a numerical meaning, or astrological name that relates to time (August, Wednesday, Septimus, etc.)
Where: a place name (name of a city, country, region, river, ocean, planet, etc.)
Why: a virtue name (doesn't have to be 'wordy' but the word needs to be obvious, for example you could use Constance or Constanza)
How: a verb or occupation name (Chase, Scout, Fletcher, etc.)