Fry's family mix-up

[on:]

I wasn't sure which forum to put it in, but I think it belongs in here because its to do with Fry, Fry's dad and Fry's dad's dad.

Well we know that Fry is his own grandfather because of what happened in 'Roswell that Ends Well' So that makes Fry his dad's dad right?
But in the episode 'Luck of the Fryrish' I'm pretty sure that Fry's dad said that his dad was called Yancy, and his dad's dad, and his dad's dad and so on and so on back to minute man Yancy Fry.

Well, I'm guessing that Fry's dad was raised without a dad since Fry dissapread back to the future shortly after doing 'the nasty in the pasty'. So how does Fry's dad know that his dad was called Yancy when he wasn't? And also, if they hadn't gone back in time and altered the past, Fry's dad's dad wouldn't have been called Yancy, he'd have been called Enus 

So let me know what you think. Have I totally messed up and been thinking too hard about this or does it seem logical and its a plot hole? 

[Reply #1 on:]

This issue has popped a number of times. The explanation is: Fry's grandfather was never named Yancy. The exact line Fry's dad said to Fry's brother was:

"Son, your name is Yancy. Just like me and my grandfather and so on. All the way back to Minute Man Yancy Fry, who blasted commies in the American Revolution."

Fry's dad left out his own father, because he was named Enos (or so he thought).

[Reply #2 on:]

Oooooohhhhh yeeeaaaaaaah, you're right.
Okey dokey, thankyou 

And so ends that debate 

[Reply #3 on:]

All part of the job. Now if only I got paid for doing it. 

[Reply #4 on:]

Fat chance, bucko.