William Heyliger

I can find little about William Heyliger. He was one of the BSA-approved authors.

In 1915, he wrote an letter to the New York Times in response to an editorial lamenting the state of juvenile literature, and lambasting the "series" novel. You can find the letter here.

His search page on Amazon

His search page on Project Gutenberg

His search page on Google Books

His Boy Scout books: