Alexander Theroux, Paul Theroux the travel writer's brother, is the snootiest of the snooty, bar none. He criticizes, in one of his works of fiction, certain characters' use of "fordy" for "forty," "thirdy-five" for "thirty-five," and so on.

I listen hard to the speech here in central Virginia, and I would say I rarely, if ever, hear the "t" enunciated in thirty and forty, although it's there often in fifty, sixty, seventy, etc. However, in numbers such as forty-five, I hear "fordy-five." I attribute this to the alacrity of the tongue itself rather than ignorance, especially in the enunciation of numbers. We more often hear "liddle" rather than "little." These don't get my quince up as does "crown" for "crayon."

Best regards,
WW, who's gedding ready for about thirdy dinner guests, big and liddle