In the chrysalids what does Davids dad look like?

In "The Chrysalids" by John Wyndham, David's father, known as the Sealand leader, is described as a tall and imposing figure with a strong build. He possesses a serious demeanor, reflecting his authoritative role in their society. His appearance symbolizes the traditional values and strict beliefs of the community, emphasizing the importance of conformity and the rejection of deviations.