After reconnecting with someone whom I knew in California and who was now in New Jersey, I realized her husband's family's long connection to a small community, now a suburb of a larger city, in that Eastern state. My own family had a long-ago connection to the same community when it was much, much smaller, and more rural.
My great-grandmother's sister and her husband had settled in that small town soon after they arrived in 1905, although my great-grandmother and her family lived in nearby big-city Newark.
I took a chance and asked if the woman's husband, whose family had lived there from the early 1900s, possibly had known my relatives. It was very exciting to learn that my great-grandmother's sister had been the husband's babysitter!