How do I find the 1992 fair market value of a house that sold in 2016?

My parents put the 5 siblings names on the deed of their house in 1992 & removed their own. The house was sold in 2016 & proceeds divided equally. Do we need the FMV as of 1992 & how do we find it? Where in Turbo tax is this info entered? Property was in MA, we live in CA. We each received a 1099-S for 13,400. We did not know deed was changed to include our names until 2010.