Just because the family may no longer be directly involved doesn't mean that long-time vendor/supplier relationships don't still exist. Heck even the Maytag Appliance company timeline states: "1941-45 Maytag discontinued washer manufacturing and made parts for military aircraft."
So how do YOU know that Maytag appliance isn't still supplying components to Maytag Aircraft and Mercury Air Group???
Easily. You assert it as fact.