That is correct, and you have to determine how much you want to find a person. I one time spent many hours looking for someone on Facebook (when I was a member) and it paid off. I have since deleted my account because of the incessant request to be friends of friends, of someone who you may want to be friends, with.
Many of those pay sites you see will charge you just for the day, 30 days, or year, as low as a couple bucks for the day use, and on upward for yearly use.
Post on some of the private forums who you are looking for. It's a small world. I would not put their name here as this is an open forum.
Wayne MSGT USMC (Ret) & Earlene (CinCHouse)
2008 Winnebago Destination 39W
It is what it is, and then it is what you make of it.