Tom Yeung here with this week’s Sunday Digest.  Last week, I told you the story about news magnate Charles E. Marsh. The Ohio-born businessman had built an incredible fortune buying up small newspapers across Texas in the 1930s… but knew little about the oil boom happening under his nose. To invest in the bonanza, he bankrolled Sid Richardson, an expert oil wildcatter who had fallen on hard times during the 1920s oil bust. Marsh wrote a $30,000 check, and the oilman went to work. It was a resounding success ...