The sale would be recorded in property deeds somewhere in the county and might be online. In over 60 years, there were bound to be some improvements, but how much was spent would be hard to determine.
If you are unable to identify a basis in the house, the IRS likes to use zero as the basis.
If you want to go deep, you could make a list of everything done to the house and look up historical prices for what was done and when.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
