(and they can only be speculation .....:-0)

are that, as

...Kitty Bennet was satisfactorily married to a cleryman near Pemberley , while MAry obtianed nothing higher than one of her Uncle Philip's clerks, and was content to be considered a star in the society of Meryton...." they were all well catered for.

Aunt Philips, who survived her husband(!) became a silly, merry widow on Mr Philip's death .