A Little Book for Christmas by Cyrus Townsend Brady

Short excerpt:

father was anything but ill. He must see his brother. He stood in no little awe of that brother, who was his exact antithesis in almost everything. They had not got along particularly well. If his father had been inside the door he would have hesitated with his hand on the knob. If his father had not been ill he would not have attempted to face his brother. But his anxiety, which was increased by a sudden foreboding, for Janet, the maid, had looked at him so strangely, moved him to quick action. He threw the door open instantly. What he saw did not reassure him. William was clad in funeral black. He wore a long frock coat instead of the usual knockabout suit he affected on the farm. His face was white and haggard. There was an instant interchange of names.

"John!"

"William!"

And then--

"Is father ill?" burst out the younger.