Diane-- If you know that your parents were married in Buffalo, then there will be a record of it at the church.Marriage records vary from denomination to denomination but there is a good possibility that it would list both your parents birth dates.
I did a search earlier this year for a WW2 paratrooper who was KIA on D-Day in France. I found out where he was from, found a write up about him in the local paper, which gave his mothers name.I called a church and school in that neighborhood in the Bronx and shortly received his school records and those of his sister--but she had a different last name--a half-sister. I also received the sisters marriage record.This gave the names of her parents and those of the grooms parents.I tracked the groom back to his family in Massachusetts, and now had another last name for the sister.I found out that the mother had deceased in upstate New York, and discovered where she was buried.On calling the cemetery I found out that her daughter (the paratroopers half-sister)had signed off on the cemetery arrangements.This got me from 1938 all the way to 1981.Then I ran her name through several filters and finally wound up talking with the half-sister of the paratrooper I was looking for as she was now living out in California.
The point is, don't be boxed in by places and dates especially on the male side of a family.Nearly any genealogical problem can be solved.