Surely it has never been easier to search for your long lost family?  Almost  everyone has access to a computer now and is linked to the internet where they can log into geneological sites which enable them to trace their family tree by finding recorded births, deaths, marriages and divorces. 

Another possibility is to access sites which keep online copies of historical newspapers around the world.  Just type in your relatives' name/s and if their name has ever appeared in that publication you can bring up information about them from decades ago. 

Not to forget modern day social media sites.  More & more people are opening accounts on Facebook or similar platforms to keep their "friends" up-to-date with all the details of their day-to-day lives, including photographs which are so easily obtainable now as almost everyone has a mobile phone with a camera which makes it so easy to take photos instantaneously, "selfies", (photos of yourself alone or with others), and send them off immediately to your group of "followers". 

It is now also possible to trace your long lost family by submitting a sample of your DNA, which can then link you to someone you are unknowingly related to.  How the world has advanced! 

Perhaps I don't sound all that convinced, and that is because I believe from personal experience that going down the path of finding out about long lost family is like a two-edged sword. It can lead to great happines but also to great unhappiness, as I think my book, "Mother Was A Stranger", amply demonstrates.