Who is Harold Plover from Galatea 2.2 and what is their importance?

Harold Plover is presented as one of the people working on the team that Richard and Lentz are trying to prove wrong. He has two girls who are brilliant and often come into the lab with him to observe the progress on the machine. One daughter is named Trish, the other is Sue. Harold is the one that will be setting the test question for Helen and her competition.