Little is known about his childhood other than that life was difficult.

Little is known about her childhood, bar the fact that she received no formal education.

Very little is known about his childhood or education, as even friends considered him a very private man.

Little is known about his early childhood except that he never completed school.

Nothing else is known about his childhood or education.

Very little is known about his childhood and early years as an adult.

Not much is known about his childhood and education.

The little we know about his childhood seems carved out of legend.

Not much is known about his childhood, except that he received little to no education.

Very little is known about his childhood and teenage years.