The Time Traveller and the Immortal

This role starts in New York in the 1700's, but can easily shift location as the years go by. I've tried to leave it open so either character can be the time traveller or immortal, so feel free to pick whichever role you'd prefer! This is designed as a romance, but it isn't required to be one. 

Sarah Clark walked down the streets of New York, hustling past carriages and doing her best to avoid mud gathering on the hem of her skirt. Her father had spent the past few years establishing a company in the city’s ports and was requesting her help in ensuring the goods brought in on the ships were safe from the incoming British army. With any luck, the war would soon be over and their lives would return to normal, if anything with a bit of good fortune that would come from a life outside of British rule. 

Sarah was only a few hundred feet away from her father’s building when a man runs directly into her, knocking her to the ground. Her lips part to shout out angrily at the man, but before she can he speaks to her quickly, his voice pleading, and runs away. She’s left on the ground dumbfounded, trying to process what had just happened. Somehow despite never having met him before the man had known her name, her father’s name, and issued her a warning in the span of only a few seconds. “Stay out of the building today, Sarah, please.” 

An uneasy feeling settles in her gut as she slowly stands and walks toward her father’s building. Why would a strange man ask her to stay away from it today? There was nothing different about the docks, at least not that she could see. Still, for a reason she couldn’t quite place, Sarah asked her father if she could work at their home for the day organizing the goods they had stored there. She wouldn’t find out until later, but the docks had been raided by British troops seeking to control the ports. Had she been in the building, Sarah very likely would have been brought to a base to serve the British army or killed. She spent the next few years looking around for the man that had warned her, but didn’t see him again until the war had ended. 

On a beautiful day in the year 1787 Sarah walks yet again through the streets. She had given up most hope of finding the man who had warned her, all but forgetting it had happened at all. The bustle around the docks on the south side of Manhattan had only grown since the end of the war, trade flourishing in the city and Sarah's father gaining quite a bit of wealth. She turns a corner and comes face to face with a man who sparks recognition in her mind, though he seems to have remained impossibly similar looking to the last time she had seen him almost a decade before. "Oh, I uh, I'm so sorry Sir. I'll get out of your way." A smile crosses the woman's lips, her movements hesitating before she actually steps out of his path. "I'm sorry, have we met? You look a lot like someone I knew years ago."