Jim,

I have three New York Times news articles online that mention Wark in
an incidental sort of way.  There are online at:

http://www.tarleton.edu/~schmidt/19080614.html
This is an interview Clara gave on June 14, 1908 regarding her father.

http://www.tarleton.edu/~schmidt/19080919.html
This is a news story regarding the burglary at Stormfield.  I get the
impression that Wark may have been staying there the night the villa was
burglarized.

http://www.tarleton.edu/~schmidt/19090804.html
Wark is mentioned in this story by Ralph Ashcroft in a derogatory
manner as a drain on Twain's finances.

Barb