Wallis: The Queen That Never Was
Channel 5, November 29, 2017
Conjoined twins that shared a liver, intestine AND bladder have been successfully separated after a marathon surgery lasting 12 hours and involving 20 doctors
Mail Online, December 14, 2017
Suddenly I am seeing ‘that’ used everywhere instead of ‘who’. In this context, ‘that’ is a relative pronoun introducing a defining clause, such as ‘the tree that has been here for 400 years’. However when you are talking about people, the word you want is ‘who’. If you are talking about animals, it is ‘which’. In fact for all non-human references I think ‘which’ is more elegant than ‘that’, so: ‘the tree which has been here for 400 years’.