I am a long time MB reader with a delema. I have recently found out aabout someone else having an affair and secret baby. I don't have hard evidence, except the baby is evidence if dna were tested, but because of the details I found out, it is very obvious as to who this is in our small town. I know DEFINTLY. I found out htere is not just an affair but also a baby as a result as well and the wife does not know. also the grandparents of the baby do not know and I think they should no they have grandchild.
I can't tell the wife or grandparnents in person because I could lose my job since I found out where I work and also I know the family as an acqaintence. but the wife is being lied to for a long time to not know her husband has a baby with a second woman. the wife also has small kids.
Should I send an anonamous letter to tell her or the grandmother?

You could send an anonymous letter, but I would make darn sure you are correct about this and would send whatever evidence you have. Exposing anonymously is very dangerous, because the WS will most likely deny it. His word will carry more weight than someone who exposed anonymously so when he denies it, the poor BS will have no way to find out the truth.

I could give the wife and grandmother information about where the baby lives iwth its mother. The poor mother has gotten no help at all from the man. the mother would probably be releived, as the reason I found out was she was so upset and talked about it at my workplace. He's been lying to both women and wants nothing to do with the baby. Shouldn't that bbaby deserve to know its own relatives and dont' the grandparents have a right to know?
Or is this just none of my business?

Unless you are directly involved or have PROOF (DNA, photos, phone transcripts, etc)- I'd stay out of it.

This smells like trouble to me.

Yes. The mother should file suit for child support.

You SHOULD tell the BS (the wife) because she has a right to know that her husband is a cheat. She can easily get to the bottom of it by asking her husband to take a polygraph. As far as the "poor mother"... she chose to sleep with a married man. She is the OW. Seems like she would be willing to submit to a DNA test to prove paternity.

The WH should be made to pay child support for the innocent child in all of this. I feel the most sorry for the child... who has two parents with no morals.