Founder of the influential stamp-collector publication Linn's Stamp News.
He was still a small-town stamp dealer when he made his first foray into publishing a stamp collecting publication The Columbian, which lasted one issue.
His publication survived more than 100 years, existing still in print form as well as online.
He was born in Greenville, Ohio, the son of a publisher and job printer.
He created the first pre-printed cacheted first day, commemorating the death of President Warren G. Harding.
