Complex sentence: They moved into a house on South Terrace Drive, Pasadena, while Parsons gained employment for the explosives manufacturer Halifax Powder Company at their facility in Saugus; much to Helen's dismay, Parsons spent most of his wages funding the GALCIT Rocket Research Group.
Split into simpler sentences: They moved into a house on South Terrace Drive, Pasadena, while Parsons gained employment for the explosives manufacturer Halifax Powder Company at their facility in Saugus. Much to Helen's dismay, Parsons spent most of his wages funding the GALCIT Rocket Research Group.