What do we learn about Denis Eady in chapter 1?

From the text:

On my arrival at Starkfield, Denis Eady, the rich Irish grocer, who was the proprietor of Starkfield's nearest approach to a livery stable, had entered into an agreement to send me over daily to Corbury Flats, where I had to pick up my train for the Junction. But about the middle of the winter Eady's horses fell ill of a local epidemic. The illness spread to the other Starkfield stables and for a day or two I was put to it to find a means of transport. Then Harmon Gow suggested that Ethan Frome's bay was still on his legs and that his owner might be glad to drive me over.