Most likely the main character and some supporting characters. For example, if it's a story set in a school, it might be the main character and their new classmates or a teacher who made a strong first impression on the first day.
On the first day of our story, there could be a whole bunch of people involved. The main character is of course there. There might also be a love interest who catches their eye from afar. Then there could be a group of antagonists who are already plotting against the main character, even if the main character doesn't know it yet. And don't forget about the bystanders, the people in the background who add to the atmosphere of the story. Maybe there's an old lady on the street corner who gives a strange look as the main character passes by, or a group of children playing who make the main character remember their own childhood.
On the first day of our story, there could be the protagonist's best friend involved. They might have been there to share some important news or just to have a friendly chat which could potentially be a starting point for something bigger in the story.
It was that little boy playing with his dog near the park. He was really friendly and told us about the best places to play around there. His dog was so cute and kept jumping around us, which was really fun.
Well, on the first day of our story, perhaps the main characters met for the very first time. It could be in a bustling city street or a quiet little town square.
Well, in the first day of our story, it could be that the sun was shining brightly as our protagonist set out on an adventure. They might have met some interesting characters right from the start, like an old wise man who gave them some cryptic advice that would later prove important.
I don't know for sure who is involved in 'our quad cities story' without more details. It could be the residents of the quad cities, local business owners, or community leaders.
In the Judeo - Christian 'day 1 creation story', God is the one involved. God is the creator who brings light into existence on the first day.
Michael P. Murphy was the key figure in the Memorial Day Murph story. He was a Navy lieutenant. Because of his heroism, the Murph workout was named in his honor. People who participate in this workout on Memorial Day are also involved in a way, as they are commemorating Murphy's sacrifice.
In the 'first watch story', it could be a professional. For instance, a scientist who was the first to watch a new chemical reaction in a lab. He or she would be highly focused, taking notes and observing every detail carefully. It could also be a journalist who was the first to watch a significant news event unfold and then had to report on it.
If the 'first pegging story' is related to a historical event, it could be soldiers or military strategists. For example, in ancient warfare, pegging might have been used to set up tents or fortifications. So, it could be the soldiers who first used pegs in that way and the officers who ordered it. There could also be craftsmen involved in making the pegs themselves, ensuring they were of the right length and strength for the intended purpose.
The people involved in the 'first house story' could vary greatly. If it's a story about building a house, it would involve the architects, contractors, and construction workers. If it's a story about living in the first house, then it would be the family members or individuals who called that place home. There might also be local community members like the postman or the grocery store owner who had some interaction with the people in the first house and thus are part of the story.