My parents always treated us to Buffalo's on Irving Park after another (dreadful) visit with my grandparents.
After the original was closed for the purposes of sprouting yet another gas station, Buffalo's opened a location on Dempster, which is also long gone. By the way, it didn't close without a fight. Mike Royko at the time wrote several columns protesting the Buffalo's demise.
Buffalo's in Buffalo Grove on the corner of ARlington Heights And Lake Cook Roads is allegedly from this lineage. I have been there for their ice cream. IT is also a greek family-style restaurant. What I have never gotten around to doing is inquiring if the alleged lineage is true or just borrowing from an old Chicago legacy.
Ah the Buffalo, those were good times ....