Mark Durenberger, a veteran engineer and longtime member of the Radio World family, is a member of the board of the Pavek Museum outside of Minneapolis. In that role he has written an essay about radio station WLAG, which came into being 100 years ago this month, and about how that early station turned into what is now WCCO. 
An excerpt:
“The Star-Tribune of Sept. 3, 1922 announced, ‘Hotel’s Giant Radio to Open with Concert’ and ‘New Minneapolis Set is One of Six Largest in the World.’ No high expectations here! … Johnson knew the mike in front of him was connected to a transmitter that could carry his voice across the country. Nonetheless at 9 a.m. on Sept. 4, 1922, he straightened his shoulders and announced, ‘WLAG, Your Call of the North Station.’ Mr. Johnson stepped back and thought, ‘Now what?’”
Mark’s 30-page essay helps answer that question. Fans of early radio history and of WCCO in particular will appreciate it.
You can find the essay here in PDF form.
