Finding owner of abandoned home

[Jose Alexander]

So I came across this house that is abandoned and Im trying to reach the owner. I spoke to the neighbors and they told me the owner died and the wife and family haven’t been to the house since which is the reason why it’s abandoned. I asked if they had the wife’s number the guy said no but his sister was kind of close with the family, so left them my contact info. I don’t want to wait to see if the sister calls me or not i want to get in touch with the wife ASAP. I looked on the tax records already to see the basic information got the couples name so im guessing she’s now the original owner. How can i get in contact with the wife directly I want to see if she’s willing to sell.