[sionnsar]

Is the author any relation to the historian?

Yes:

Toynbee was the second daughter of the literary critic Philip Toynbee (by his first wife Anne), granddaughter of the historian Arnold J. Toynbee and great-great niece of philanthropist and economic historian Arnold Toynbee after whom Toynbee Hall in the East End of London is named.

And a devout atheist.

[Chickensoup]

Thank you