Complex sentence: A staff of 13, most of whom were engaged through an agency in London, carried out the housework: parlourmaids, kitchenmaids, laundrymaids and gardeners, as well as a governess, a cook, an estate carpenter and a Scottish butler.
Split into simpler sentences: A staff of 13, most of whom were engaged through an agency in London, carried out the housework. Parlourmaids, kitchenmaids, laundrymaids and gardeners, as well as a governess, a cook, an estate carpenter and a Scottish butler.