A Sandburg Stumper

[Rob Wick]

This is a two-parter. Read the following:

I want your Photograph--I want it at once--There is no use in your saying you 'will probably send it to me--' I must have it--I cant do without it and I dont intend to do without it--I must have it, if it costs me a trip to [redacted] and a race with Blood hounds to chace you down and then carry you to town with these strong arms and hold you until we can get your darned old phiz in type.

First, to whom was this written?
Second, who was the writer?
First clue: It was not Sandburg.

Best
Rob