Since I don't know the details of the McKissack family construction story, I can't name the exact key characters. But it could be the family patriarch or matriarch who started the construction business, or maybe the most skilled craftsman in the family.
In the McKissack family construction story, the key characters could be those who had the initial idea to embark on construction projects. Maybe it was a father figure who saw the potential in building in their area. There could also be the sons or daughters who were trained in construction skills and became the backbone of the family's construction operations. Additionally, there might be family members who were involved in networking and getting new business opportunities. They could be the ones who made connections with local contractors, suppliers, or clients, helping the McKissack family construction business to thrive.
I'm not familiar with the McKissack family construction story, so it's difficult to say who the key characters are. However, in a family construction story, there are usually some family members who play important roles. It could be the person who has the business acumen to manage the construction projects and get contracts. Or it could be the creative family member who comes up with unique design ideas for the constructions. There might also be the hard - working family members who are on the site every day, making sure the construction progresses smoothly.