A father located his ex-wife and long-lost son through Facebook, after years of searching using various people finder sites and even a private detective.

US airman Don Gibson met Chrissie in U.K. more than 20 years ago, they married in 1989 before their son Craig was born (who now has 22 years). Don was turned down for Air Force service until he moved back to the U.S. Chrissie already had two sons from a previous marriage and didn’t want to leave them behind. Eventually, Chrissie and Don lost contact with each other.

For years, both Don and Craig searched for each other. Don even employed a private detective through Scotland Yard and, as well paid several online tracking companies. On the other hand, Craig told The Mirror that since he was 12 years old, he used social media sites to find his father, but with no success.

Don opened profile on Facebook, and found Craig’s half-brother through whom he found Craig. He sent Craig this message: “Do you know who I am? Would you like to know. Ask whatever you want. Also tell your mum I said hi. I think of you often. Hope you are all well. Hope to hear from you soon.” On June 16, they chatted on Skype and now the family will reunite in October when Don moves to the U.K. There’s even a chance that Chrissie and Don will re-marry.

“I thank my lucky stars for modern technology because without that we wouldn’t be here.” Don told the Mirror.