In the mid-1930's there was a poor family named Dunn living in Ireland. The famine was very bad and they were just barely having enough to sustain. The cold & dark winter was coming and they only saw one way to make a go of it. That was to send the oldest lad to America, land of the free & home to the brave. The Mother, of course, was devastated.
"Aw me lad, you will take care? Here take this warm vest and blanket if you should get cold. And here is the last 5 potatoes, take them for your long journey. And you will write to your poor old mother, won't ye? Let us know how you do be faring?"
"yes, yes, mother, to be sure!"
So the lad starts on his long journey first by foot and then by boat. Many weeks later they arrive in New York Harbor. He takes off looking for work and after a letter or two, forgets about his poor family back in Ireland.

Many months later, a neighbor of the poor family is also ready to leave for America to find his fortune. So Mrs. Dunn went over to say goodbye and send some good luck wishes. And she says to him,
"You are going to America just like my oldest lad. Would you do me a favor?"
"Of course, ma'am."
"When you go to America, find Connecticut. And in Connecticut, find a wee white house, and you tell my boy to write to his mother."
"Yes, Yes I will remember"

So this lad takes the long trek to America, and eventually lands in New York. He's amazed by the masses of people, the filth, and after a while finds a bus. He climbs on board and says,
"I want to go to Connecticut"
"Very well", said the bus driver
They go a few blocks, and the lad runs to the front of the bus.
"Are we in Connecticut yet?"
"No, no. I will tell you when we get to Connecticut."
He does this two more times. Finally the bus driver tells him to sit down & shut up or he will get thrown off the bus. So he sits down & contents himself with looking out the window.

After a couple of hours, he sees the sign that says "Welcome to Connecticut". He runs to the front of the bus and says "let me off, let me off! We're in Connecticut!"
The bus driver replies, "yes but where in Connecticut would you like to go, New Haven?"
"No, no, right here!"
So the bus driver lets him off, unloads his suitcases and leaves him in the middle of nowhere.

So the lad starts walking. After a little while he comes to a gas station. He goes up to the owner of the gas station and says
"Excuse me, can you tell me where the wee white house is?"
The owner gives him a strange look, and says "around the back of the building".
So he runs to the back of the building and sure enough there was a wee white house. He pounds on the door.
"Just a minute! Just a minute!"
After a moment a man comes to the door, zipping up his pants. Breathless, the young man says, "Are you Dunn?"
"Y-y-y-yes" he stuttered.
"Then write to your mother!"