Complex sentence: Grenfell Street was named after Pascoe St Leger Grenfell, a British businessman and valued member of the South Australian Church committee He had donated an acre of land on North Terrace for the construction of the Holy Trinity Church one of the first churches builit in the city.
Split into simpler sentences: Grenfell Street was named after Pascoe St Leger Grenfell, a British businessman and valued member of the South Australian Church committee. His significant donation of an acre of land on North Terrace was used for the construction of the Holy Trinity Church--one of the first churches built in the city.