Sometimes you will run into a ancestor that you just can find any information on. Don't give up,you know they existed but what happen to them??? Well,it could be a number of things,for one thing people mirgrated around from place to place looking for ways to make a better living for their families,they could have used a nickname instead of a real first name,and/or the census taker could have mis-spelled the name wrong. Then again your ancestors could have been like one of my brick walls,been migrating when the census was being done for a certain year and they didn't get counted. What ever the reason please don't give up,that information you need to make a connection is out there somewhere.