The correct answer to this open question is the following.
Hi uncle Dave,
I know that it's been so long since my last letter. But I have been very busy with my work. You know, as a told you in my last letter, it is a time of changes in the United States and I am proud to say that I am part of these changes.
The Railroad system has expanded here in my country and I work for a railroad company. It is incredible how railroads help connect each other and facilitate the transportation of goods that previously only could be transported by wagons through difficult roads. And the best is the reduction in travel times. That is amazing! I don't think there will always be better transportation than the train.
Let me tell you about other great transportation advancements that are also helping industries and traders. Waterways are facilitating navigation and transportation through rivers. Some rivers and canals have been used by navigating companies to carry heavy loads to distant places. And that has been very helpful.
Hope everything is all right with you, your wife, and the kids.
I just wanted to keep you posted.
Best Regards,