Re: hardwood front porch sealer
The sad truth is, there is no clear sealer for exterior decking that holds up longer than two years; Whatever you end up with is going to be high-maintenance. I would suggest the Australian wood oil, or exterior Waterlox.
I hope it is white oak, because if it's red oak you're really wasting your time, it's going to rot out in short order.
If the flooring is not yet installed, I would recommend dipping it in whichever finish you choose before installing it, thereby sealing every surface.
Remove not the ancient landmark, which your fathers have set.