His support, if any, would have been indirect and likely within his role as a journalist and editor. As a successful journalist, he would have inadvertently supported good writing by:
* Creating a demand for quality journalism: His own successful career in journalism demonstrates the value of strong writing skills within the industry. His work likely inspired others to pursue similar careers, contributing to a wider pool of talented writers.
* Providing employment for writers: As an editor or in senior journalistic roles, he may have hired and mentored aspiring and established writers.
* Promoting good writing through editing and publishing: His editorial work, if he held such positions, would have involved shaping and refining the writing of others, thereby improving the quality of published materials.
In short, any support Sam McClure offered to good writers would have been through the indirect influence of his own career success and professional roles within the journalistic field. He didn't act as a direct benefactor in a known or documented way.