Essie Summers is one of a number of successful New Zealand romance writers. The Guru has suggested some more with a Christchurch connection. These include:
Nora Sanderson, 1905-1975. Nora was writing for Mills and Boon in the 1960s and 70s and possibly lived at Templeton. She was born Nora Brocas and the library has her book about growing up in New Zealand. Her novels can be interloaned from the National Library.
Does anyone know anything else about these writers or any other successful romance writers based in or around Christchurch?