And I wonder which came first - the tracks being built over 100 years ago or that family buying and moving into a house near train tracks?
It sounds to me like one of those cases where people buy a house near an airport, and then complain because they hear jet noise from the airport!
Occasionally, but not often, the airport noise people do have legitimate complaints. Arrival and departure procedures change frequently. Around these parts, they adjusted the arrival procedure for DCA. Now, up at Great Falls VA, the airliners don't have to be over the river and now come in about a mile further west. So now instead of being over the river and quieter, they're low over houses. A mile can make a world of difference in noise.
I live a mile and a half west of the Potomac and I never hear the planes at all. But occasionally one has to abort a landing and screams over my building at 600 feet with its engines at full power. A modest adjustment to the departure procedure would mean that "wind rattling jetwash" goes from once a week at worst to every day. I'd be pretty grouchy!
I've got jetliners, CSX/Amtrak/VRE, and WMATA all right outside my window. Its not TOO bad really.