While there are many people who learned how to can from older generations, before canning methods became standardized, the current best practice is 55 minutes for pints and 85 minutes for quarts. You can use the times you grew up using, but testing shows that this is the "safest" timing for canning corn. That said, you are free to do what you like, and I believe you should be able to do that! For me, I like to stay on the side of caution in cases such as these.