rebeccaclaire86
Thank you for the reply. I’ve tried tracking down a first marriage, there are quite a lot to go through 
Yes, I’ve been a bit hesitant on the DNA approach because of the possible contact. The idea to do it anonymously is very good.
DNA does not work like that there is no automatic contact with anyone who either shares DNA or who manages shared DNA.
One of the problems those of us who use DNA is that many DNA matches have a user name that does not mean much when it is in isolation. To give an example, one of my Wife’s DNA matches is M.S. that is all, no visible name, no tree therefore invisible. Yes the DNA matches can see that DNA is shared but with nothing to go on apart from a user name there is nothing anyone can do effectively to identify the testee.
DNA also is not a “magic ticket” to solving relationship issues.
Taking a DNA test will only show people who are related to the person taking the test, the higher the shared cM figure the closer the relationship. Again to give another example, you take a test and have a 50cM DNA match among the thousands of others, that 50 cM match might be linked to you via a GG GParent, that in turn could give a clue to the family. There are a lot of ifs and buts and learning about DNA is a slog, learning how to use it is fairly easy.
So do take an Ancestry DNA test, create an Ancestry account and have a user name displayed which will mean nothing to anyone viewing it. Then use the account to just to look at DNA matches, you can build trees in your normal Ancestry or Find My Past account or within the software that you use.
You can also receive the results, take a look at the high matches, screenshot each page down to say 100 DNA matches then turn off DNA being visible. In the short time it is visible it is highly unlikely that anyone will try to contact you and if that happens all you get is an Ancestry message to the account with the “fake” ID. Turn back on DNA visibility when you are comfortable to do so.
By the time you order, take and have the results it would be some 8 weeks before the results are known. So plenty of time to work on the paper trails.
Good luck.